{
  "entity": "Hafsa Sourcing (hafsasourcing.com)",
  "corridor": "China Main Ports -> Chattogram / Mongla Port, Bangladesh",
  "count": 27,
  "categories": [
    {
      "id": "all",
      "name": "All Chemicals",
      "shortName": "All (27)",
      "description": "Complete China-to-Bangladesh indenting portfolio across basic inorganic, organic, textile auxiliary, dyestuff, ETP, and surfactant lines."
    },
    {
      "id": "inorganic-alkalis",
      "name": "Basic Inorganic & Alkalis",
      "shortName": "Inorganic & Alkalis",
      "description": "High-volume chlor-alkali, bleaching, reducing, and electrolyte chemicals sourced from Shandong, Hebei, and Inner Mongolia producers."
    },
    {
      "id": "organic-acids-chelates",
      "name": "Organic Acids, Chelates & Phosphates",
      "shortName": "Acids & Phosphates",
      "description": "Dyehouse pH neutralizers, leather pickling acids, builders, and water-softening sequestrants."
    },
    {
      "id": "textile-auxiliaries",
      "name": "Textile Pretreatment, Dyeing & Finishing Auxiliaries",
      "shortName": "Textile Auxiliaries",
      "description": "ZDHC MRSL v3.1 & OEKO-TEX® compliant wetting agents, peroxide stabilizers, formaldehyde-free fixing agents, silicone oils, softener flakes, OBAs, and enzymes."
    },
    {
      "id": "dyestuffs",
      "name": "Textile Dyestuffs (Reactive, Disperse & Indigo)",
      "shortName": "Dyestuffs",
      "description": "High-strength cotton reactive dyes, polyester disperse dyes, and denim vat indigo granular from Zhejiang and Jiangsu dye complexes."
    },
    {
      "id": "etp-water-treatment",
      "name": "ETP & Water Treatment Chemicals",
      "shortName": "ETP & Water Treatment",
      "description": "Coagulants, cationic decolorizing polymers, and polyelectrolyte flocculants engineered for Bangladesh textile dyeing & washing ETP compliance."
    },
    {
      "id": "surfactants-pigments",
      "name": "Surfactants, Pigments & Detergent Raw Materials",
      "shortName": "Surfactants & Pigments",
      "description": "Primary anionic surfactants and rutile/anatase titanium dioxide for detergent, home care, coating, masterbatch, and textile printing industries."
    }
  ],
  "tradeCorridors": [
    {
      "pol": "Qingdao Port (Shandong)",
      "pod": "Chattogram Sea Port (BD)",
      "transitDays": "14–17 Days",
      "freeTime": "14–21 Days Detention Free",
      "primaryCargoes": "Caustic Soda 99%, Soda Ash, H2O2 50%, Formic Acid, Oxalic Acid, Citric Acid, PAC 30%, PAM",
      "frequency": "4–5 Weekly Sailings (Direct & Singapore/Port Klang Feeder)"
    },
    {
      "pol": "Tianjin / Xingang (Hebei & Inner Mongolia)",
      "pod": "Chattogram / Mongla Port",
      "transitDays": "15–19 Days",
      "freeTime": "14–21 Days Detention Free",
      "primaryCargoes": "Caustic Soda Flakes/Pearls, Soda Ash Dense/Light, Sodium Bicarbonate, Sodium Formate",
      "frequency": "3–4 Weekly Sailings"
    },
    {
      "pol": "Shanghai & Ningbo (Zhejiang / Jiangsu)",
      "pod": "Chattogram Port / Kamalapur ICD",
      "transitDays": "12–15 Days",
      "freeTime": "14–21 Days Detention Free",
      "primaryCargoes": "Glacial Acetic Acid, Textile Auxiliaries, Block Silicone Oils, Reactive & Disperse Dyes, SLES 70%, LABSA 96%, ETP Decolorizer",
      "frequency": "Daily / 6+ Weekly Sailings"
    },
    {
      "pol": "Guangzhou (Huangpu) & Shenzhen (Shekou)",
      "pod": "Chattogram Sea Port (BD)",
      "transitDays": "10–14 Days",
      "freeTime": "14 Days DG / 21 Days Non-DG",
      "primaryCargoes": "Sodium Hydrosulphite (Hydrose 88%/90%), Denim Washing Auxiliaries, Specialty Silicone Emulsions",
      "frequency": "4+ Weekly Fast-Feeder Sailings"
    }
  ],
  "chemicals": [
    {
      "slug": "caustic-soda-flakes-pearls-99",
      "sku": "HS-NAOH-99",
      "name": "Caustic Soda Flakes / Pearls 99%",
      "chemicalName": "Sodium Hydroxide",
      "synonyms": [
        "NaOH Flakes",
        "Caustic Soda Pearls",
        "Sodium Hydroxide Solid",
        "Lye"
      ],
      "formula": "NaOH",
      "formulaHtml": "NaOH",
      "cas": "1310-73-2",
      "ecNumber": "215-185-5",
      "hsCode": "2815.11.00",
      "category": "inorganic-alkalis",
      "categoryLabel": "Basic Inorganic & Alkalis",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "etp-wtp",
        "chemical-trading",
        "detergent-glass-ceramics"
      ],
      "purity": "99.0% Min (Industrial / Rayon Grade)",
      "standard": "GB/T 209-2018 (IT-I)",
      "originPorts": [
        "Qingdao Port",
        "Tianjin (Xingang) Port"
      ],
      "originProvinces": "Shandong / Inner Mongolia / Hebei, China",
      "packaging": "25kg 3-layer PP+PE woven bags (with inner liner)",
      "fclLoadMt": 27,
      "fclLoadDisplay": "27.0 MT (Unpalletized) / 24.0 MT (Palletized)",
      "unitWeightKg": 25,
      "imoClass": "IMO Class 8 (Corrosive), UN 1823",
      "dgStatus": "DG Class 8",
      "regulatoryNote": "Standard Industrial or Commercial IRC; HS Code 2815.11.00 mandatory on B/L & PI.",
      "complianceBadges": [
        "ISO 9001 Factory",
        "Rayon Grade Available",
        "SGS Inspected"
      ],
      "shortSummary": "High-purity 99% membrane-cell Sodium Hydroxide flakes and pearls sourced directly from top Chinese chlor-alkali plants for cotton mercerizing, reactive dyeing, soap manufacturing, and ETP neutralization.",
      "bdMarketInsight": "The #1 highest-volume basic alkali imported into Chattogram Port for Gazipur and Narayanganj knit/woven dyeing mills, paper mills, and Old Dhaka chemical wholesalers.",
      "applications": [
        "Cotton knit and woven fabric scouring, kier boiling, and high-luster mercerizing",
        "Alkali fixation bath in reactive dyeing and vat/indigo dye reduction",
        "pH neutralization of acidic wastewater streams in factory Effluent Treatment Plants (ETP)",
        "Saponification base for soap, detergent, and sodium silicate manufacturing"
      ],
      "coaSpecs": [
        {
          "parameter": "Sodium Hydroxide (NaOH) Assay",
          "spec": "≥ 99.0%",
          "typical": "99.3%",
          "method": "GB/T 4348.1"
        },
        {
          "parameter": "Sodium Carbonate (Na2CO3)",
          "spec": "≤ 0.40%",
          "typical": "0.21%",
          "method": "GB/T 4348.1"
        },
        {
          "parameter": "Sodium Chloride (NaCl)",
          "spec": "≤ 0.03%",
          "typical": "0.018%",
          "method": "GB/T 4348.2"
        },
        {
          "parameter": "Ferric Oxide (Fe2O3)",
          "spec": "≤ 0.005% (50 ppm)",
          "typical": "0.002% (20 ppm)",
          "method": "GB/T 4348.3"
        },
        {
          "parameter": "Appearance",
          "spec": "White Dry Flakes / Pearls",
          "typical": "Complies",
          "method": "Visual"
        }
      ]
    },
    {
      "slug": "hydrogen-peroxide-50-percent",
      "sku": "HS-H2O2-50",
      "name": "Hydrogen Peroxide 50% (Textile & Industrial Grade)",
      "chemicalName": "Hydrogen Peroxide Aqueous Solution",
      "synonyms": [
        "H2O2 50%",
        "Peroxide 50%",
        "Liquid Bleaching Peroxide"
      ],
      "formula": "H2O2",
      "formulaHtml": "H<sub>2</sub>O<sub>2</sub>",
      "cas": "7722-84-1",
      "ecNumber": "231-765-0",
      "hsCode": "2847.00.00",
      "category": "inorganic-alkalis",
      "categoryLabel": "Basic Inorganic & Alkalis",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "etp-wtp",
        "chemical-trading",
        "detergent-glass-ceramics"
      ],
      "purity": "50.0% Min w/w (High Stability ≥ 97%)",
      "standard": "GB/T 1616-2014",
      "originPorts": [
        "Qingdao Port",
        "Shanghai Port",
        "Ningbo Port"
      ],
      "originProvinces": "Shandong / Zhejiang / Jiangsu, China",
      "packaging": "30kg / 35kg / 50kg Vented Blue HDPE Drums or 1,200kg IBC Totes",
      "fclLoadMt": 21,
      "fclLoadDisplay": "21.0 MT (600 × 35kg Drums) / 24.0 MT (20 × 1200kg IBCs)",
      "unitWeightKg": 35,
      "imoClass": "IMO Class 5.1 (Oxidizer) + Sub-risk Class 8, UN 2014",
      "dgStatus": "DG Class 5.1 + 8",
      "regulatoryNote": "Requires Bangladesh Department of Explosives (DoEX) import/storage license & CPA DG direct-delivery compliance.",
      "complianceBadges": [
        "ZDHC Compliant",
        "High Stability ≥97%",
        "Vented UN Drums"
      ],
      "shortSummary": "Anthraquinone-process 50% Hydrogen Peroxide with low heavy-metal trace and ≥97% thermal stability for high-whiteness cotton knit/woven bleaching and pulp processing.",
      "bdMarketInsight": "Essential oxygen bleaching agent for Bangladesh export textile mills; Hafsa Sourcing ensures UN-certified vented HDPE drums and compliant DG manifests for smooth Chattogram Port clearance.",
      "applications": [
        "Continuous pad-steam and exhaust bleaching of cotton yarn, knit, and woven grey fabrics",
        "Denim garment washing and oxidative desizing in washing plants",
        "De-inking and pulp bleaching in paper and board mills",
        "Advanced Fenton oxidation and COD/BOD reduction in industrial ETPs"
      ],
      "coaSpecs": [
        {
          "parameter": "Hydrogen Peroxide (H2O2) Content",
          "spec": "≥ 50.0% (w/w)",
          "typical": "50.25%",
          "method": "GB/T 1616-2014"
        },
        {
          "parameter": "Acidity (as H2SO4)",
          "spec": "≤ 0.03%",
          "typical": "0.015%",
          "method": "GB/T 1616-2014"
        },
        {
          "parameter": "Stability (100°C, 16 hrs)",
          "spec": "≥ 97.0%",
          "typical": "98.4%",
          "method": "GB/T 1616-2014"
        },
        {
          "parameter": "Non-Volatile Matter (Evaporation Residue)",
          "spec": "≤ 0.08%",
          "typical": "0.04%",
          "method": "GB/T 1616-2014"
        },
        {
          "parameter": "Freezing Point",
          "spec": "-52°C Approx.",
          "typical": "-52°C",
          "method": "Standard"
        }
      ]
    },
    {
      "slug": "soda-ash-light-dense-99-2",
      "sku": "HS-NA2CO3-99",
      "name": "Soda Ash Light & Dense 99.2%",
      "chemicalName": "Sodium Carbonate Anhydrous",
      "synonyms": [
        "Soda Ash Light",
        "Soda Ash Dense",
        "Disodium Carbonate",
        "Washing Soda"
      ],
      "formula": "Na2CO3",
      "formulaHtml": "Na<sub>2</sub>CO<sub>3</sub>",
      "cas": "497-19-8",
      "ecNumber": "207-838-8",
      "hsCode": "2836.20.00",
      "category": "inorganic-alkalis",
      "categoryLabel": "Basic Inorganic & Alkalis",
      "industries": [
        "textile-dyeing",
        "chemical-trading",
        "detergent-glass-ceramics",
        "etp-wtp"
      ],
      "purity": "99.2% Min Total Alkali (Light & Dense Grades)",
      "standard": "GB/T 210.1-2004 (II-Class)",
      "originPorts": [
        "Qingdao Port",
        "Tianjin Port",
        "Lianyungang Port"
      ],
      "originProvinces": "Shandong / Henan / Qinghai / Jiangsu, China",
      "packaging": "Light: 40kg/50kg PP Bags; Dense: 25kg/50kg/1000kg Jumbo Bags",
      "fclLoadMt": 25,
      "fclLoadDisplay": "Light: 21.0–22.0 MT | Dense: 25.0–27.0 MT per 20ft FCL",
      "unitWeightKg": 50,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Non-DG fast-track port clearance at Chattogram Port & Kamalapur ICD under HS 2836.20.00.",
      "complianceBadges": [
        "99.2% Min Assay",
        "Non-DG Fast Track",
        "Synthetic & Natural Trona"
      ],
      "shortSummary": "Premium Chinese synthetic and natural-trona Sodium Carbonate in Light Grade (reactive dye fixation & detergents) and Dense Grade (float glass, container glass & sodium silicate).",
      "bdMarketInsight": "Soda Ash Light is consumed daily in every cotton reactive dyehouse in Gazipur, Narayanganj, and Savar to fix reactive dyes onto cellulose fibers at pH 10.5–11.0.",
      "applications": [
        "Soda Ash Light: Primary alkali buffer for fixing cotton reactive dyes in exhaust and continuous dyeing",
        "Soda Ash Dense: Fluxing raw material for float glass, hollow glassware, and sodium silicate plants",
        "Dry builder and alkalinity booster in detergent powder and laundry bar production",
        "Process water softening and boiler feed water conditioning"
      ],
      "coaSpecs": [
        {
          "parameter": "Total Alkali (as Na2CO3 dry basis)",
          "spec": "≥ 99.2%",
          "typical": "99.4%",
          "method": "GB/T 210.2"
        },
        {
          "parameter": "Chloride (as NaCl)",
          "spec": "≤ 0.70%",
          "typical": "0.35%",
          "method": "GB/T 210.2"
        },
        {
          "parameter": "Iron (Fe) Content",
          "spec": "≤ 0.004%",
          "typical": "0.002%",
          "method": "GB/T 210.2"
        },
        {
          "parameter": "Water Insoluble Matter",
          "spec": "≤ 0.03%",
          "typical": "0.015%",
          "method": "GB/T 210.2"
        },
        {
          "parameter": "Bulk Density",
          "spec": "Light: 0.50–0.65 g/ml | Dense: ≥ 0.90 g/ml",
          "typical": "0.58 / 0.98 g/ml",
          "method": "GB/T 210.2"
        }
      ]
    },
    {
      "slug": "sodium-sulphate-anhydrous-99",
      "sku": "HS-NA2SO4-99",
      "name": "Sodium Sulphate Anhydrous 99% (Glauber's Salt)",
      "chemicalName": "Disodium Sulphate Anhydrous",
      "synonyms": [
        "Glauber Salt",
        "SSA 99%",
        "Salt Cake",
        "Thenardite"
      ],
      "formula": "Na2SO4",
      "formulaHtml": "Na<sub>2</sub>SO<sub>4</sub>",
      "cas": "7757-82-6",
      "ecNumber": "231-820-9",
      "hsCode": "2833.11.00",
      "category": "inorganic-alkalis",
      "categoryLabel": "Basic Inorganic & Alkalis",
      "industries": [
        "textile-dyeing",
        "chemical-trading",
        "detergent-glass-ceramics",
        "leather-tannery"
      ],
      "purity": "99.0% Min (Neutral pH 6–8 & Weak Alkaline pH 9–11)",
      "standard": "GB/T 6009-2014 (Class I)",
      "originPorts": [
        "Qingdao Port",
        "Shanghai Port",
        "Chongqing / Wuhan via Shanghai"
      ],
      "originProvinces": "Sichuan / Hunan / Jiangsu, China",
      "packaging": "50kg PP Woven Bags (or 25kg / 1000kg Jumbo Bags)",
      "fclLoadMt": 27,
      "fclLoadDisplay": "27.0 – 28.0 MT (540–560 × 50kg Bags per 20ft FCL)",
      "unitWeightKg": 50,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Non-DG cargo; eligible for maximum 27–28 MT heavy 20ft container loading from Sichuan/Jiangsu rock-salt mines.",
      "complianceBadges": [
        "Low Ca/Mg Hardness",
        "High Whiteness ≥85%",
        "Non-DG Heavy Load"
      ],
      "shortSummary": "Ultra-low hardness (Ca+Mg ≤ 0.10%) vacuum-crystallized Sodium Sulphate Anhydrous from Sichuan and Jiangsu Glauberite mines for streak-free reactive cotton dyeing and detergent powders.",
      "bdMarketInsight": "Crucial electrolyte in Bangladesh knit/woven dyeing mills (used at 30–80 g/L) to drive reactive and direct dyes from the dyebath onto cotton fibers without spotty calcium precipitation.",
      "applications": [
        "Electrolyte exhausting agent in cotton reactive, direct, and sulphur dyeing baths",
        "Free-flowing carrier and ionic strength builder in synthetic laundry detergent powders",
        "Fining agent to remove micro-bubbles in molten glass and kraft pulp cooking liquor makeup"
      ],
      "coaSpecs": [
        {
          "parameter": "Sodium Sulphate (Na2SO4) Assay",
          "spec": "≥ 99.0%",
          "typical": "99.35%",
          "method": "GB/T 6009-2014"
        },
        {
          "parameter": "Calcium & Magnesium (as Mg)",
          "spec": "≤ 0.15%",
          "typical": "0.06%",
          "method": "GB/T 6009-2014"
        },
        {
          "parameter": "Iron (Fe) Content",
          "spec": "≤ 0.002%",
          "typical": "0.0008%",
          "method": "GB/T 6009-2014"
        },
        {
          "parameter": "Moisture Content",
          "spec": "≤ 0.20%",
          "typical": "0.08%",
          "method": "GB/T 6009-2014"
        },
        {
          "parameter": "Whiteness (R457)",
          "spec": "≥ 85.0%",
          "typical": "88.5%",
          "method": "GB/T 6009-2014"
        }
      ]
    },
    {
      "slug": "sodium-hydrosulphite-hydrose-88-90",
      "sku": "HS-NA2S2O4-88",
      "name": "Sodium Hydrosulphite 88% / 90% (Hydrose)",
      "chemicalName": "Sodium Dithionite",
      "synonyms": [
        "Hydrose",
        "Sodium Hydrosulfite",
        "Blankit",
        "Vat Reducing Agent"
      ],
      "formula": "Na2S2O4",
      "formulaHtml": "Na<sub>2</sub>S<sub>2</sub>O<sub>4</sub>",
      "cas": "7775-14-6",
      "ecNumber": "231-890-0",
      "hsCode": "2831.10.00",
      "category": "inorganic-alkalis",
      "categoryLabel": "Basic Inorganic & Alkalis",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "chemical-trading"
      ],
      "purity": "88.0% Min & 90.0% Min (Sodium Formate Process)",
      "standard": "HG/T 2074-2011",
      "originPorts": [
        "Guangzhou (Huangpu) Port",
        "Qingdao Port",
        "Shanghai Port"
      ],
      "originProvinces": "Guangdong / Shandong / Hubei, China",
      "packaging": "50kg New Sealed Iron Drums with Double PE Inner Liners",
      "fclLoadMt": 20,
      "fclLoadDisplay": "20.0 – 22.0 MT (400–440 × 50kg Iron Drums per 20ft FCL)",
      "unitWeightKg": 50,
      "imoClass": "IMO Class 4.2 (Spontaneously Combustible Solid), UN 1384",
      "dgStatus": "DG Class 4.2",
      "regulatoryNote": "Strict CPA DG Yard & DoEX clearance rules apply at Chattogram Port; shipped exclusively in UN-approved 50kg steel drums.",
      "complianceBadges": [
        "UN Steel Drums",
        "Dust-Free Granular",
        "Denim Indigo Grade"
      ],
      "shortSummary": "High-stability sodium formate-process Sodium Hydrosulphite (Hydrose) 88%/90% in hermetically sealed 50kg iron drums for denim indigo vat dyeing and reactive reduction clearing.",
      "bdMarketInsight": "Indispensable reducing agent for Bangladesh's massive denim rope/slasher dyeing sector (converting insoluble Indigo into soluble Leuco-Indigo) and polyester/cotton reduction clearing.",
      "applications": [
        "Reduction of Vat Indigo and Vat dyes into water-soluble leuco form for denim and workwear",
        "Reduction clearing after polyester disperse dyeing to achieve high rub and wash fastness",
        "Stripping of faulty dyed fabrics and reductive bleaching of mechanical pulp and kaolin clay"
      ],
      "coaSpecs": [
        {
          "parameter": "Sodium Hydrosulphite (Na2S2O4)",
          "spec": "≥ 88.0% / ≥ 90.0%",
          "typical": "88.6% / 90.4%",
          "method": "HG/T 2074-2011"
        },
        {
          "parameter": "Insoluble Matter in Water",
          "spec": "≤ 0.05%",
          "typical": "0.02%",
          "method": "HG/T 2074-2011"
        },
        {
          "parameter": "Iron (Fe) Content",
          "spec": "≤ 20 ppm",
          "typical": "11 ppm",
          "method": "HG/T 2074-2011"
        },
        {
          "parameter": "Heavy Metals (as Pb)",
          "spec": "≤ 10 ppm (Zinc-Free)",
          "typical": "< 5 ppm",
          "method": "HG/T 2074-2011"
        }
      ]
    },
    {
      "slug": "sodium-metabisulphite-smbs-97",
      "sku": "HS-SMBS-97",
      "name": "Sodium Metabisulphite 97% (SMBS)",
      "chemicalName": "Disodium Disulphite / Sodium Pyrosulphite",
      "synonyms": [
        "SMBS 97%",
        "Sodium Metabisulfite",
        "Anti-Chlor Agent"
      ],
      "formula": "Na2S2O5",
      "formulaHtml": "Na<sub>2</sub>S<sub>2</sub>O<sub>5</sub>",
      "cas": "7681-57-4",
      "ecNumber": "231-673-0",
      "hsCode": "2832.10.00",
      "category": "inorganic-alkalis",
      "categoryLabel": "Basic Inorganic & Alkalis",
      "industries": [
        "denim-washing",
        "textile-dyeing",
        "etp-wtp",
        "leather-tannery",
        "chemical-trading"
      ],
      "purity": "97.0% Min (SO2 ≥ 65.0%, Tech & Food Grades)",
      "standard": "HG/T 2826-2008 / GB 1886.7-2015",
      "originPorts": [
        "Qingdao Port",
        "Changsha / Shanghai Port"
      ],
      "originProvinces": "Shandong / Hunan, China",
      "packaging": "25kg PP Woven Bags with PE Inner Liner",
      "fclLoadMt": 27,
      "fclLoadDisplay": "25.0 – 27.0 MT (1,000–1,080 × 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-DG Cargo (Keep dry & away from strong acids)",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Classified under HS Code 2832.10.00; specify Industrial vs Food Grade on PI.",
      "complianceBadges": [
        "SO2 ≥ 65.0%",
        "Non-DG Cargo",
        "RO & Denim Anti-Chlor"
      ],
      "shortSummary": "High-SO2 content (≥65%) Sodium Metabisulphite 97% for denim chlorine bleaching neutralization (anti-chlor), RO membrane dechlorination, and ETP hexavalent chromium reduction.",
      "bdMarketInsight": "Heavily used across Dhaka and Gazipur denim washing plants after hypochlorite bleaching, as well as in reverse osmosis (RO) water treatment plants and Savar tanneries.",
      "applications": [
        "Anti-chlor neutralization after sodium/calcium hypochlorite bleaching in denim washing plants",
        "Dechlorination of feed water for Reverse Osmosis (RO) membranes in industrial WTPs",
        "Reduction of toxic Cr(VI) to Cr(III) in tannery and electroplating effluent treatment",
        "Preservative and antioxidant in leather pickling and specialty processing"
      ],
      "coaSpecs": [
        {
          "parameter": "Sodium Metabisulphite (Na2S2O5)",
          "spec": "≥ 97.0%",
          "typical": "97.6%",
          "method": "HG/T 2826-2008"
        },
        {
          "parameter": "Sulphur Dioxide (SO2) Equivalent",
          "spec": "≥ 65.0%",
          "typical": "65.7%",
          "method": "HG/T 2826-2008"
        },
        {
          "parameter": "Water Insoluble Matter",
          "spec": "≤ 0.05%",
          "typical": "0.02%",
          "method": "HG/T 2826-2008"
        },
        {
          "parameter": "Iron (Fe) Content",
          "spec": "≤ 0.005%",
          "typical": "0.002%",
          "method": "HG/T 2826-2008"
        },
        {
          "parameter": "pH Value (1% Aqueous Solution)",
          "spec": "4.0 – 4.6",
          "typical": "4.3",
          "method": "HG/T 2826-2008"
        }
      ]
    },
    {
      "slug": "sodium-bicarbonate-99-5",
      "sku": "HS-NAHCO3-99",
      "name": "Sodium Bicarbonate 99.5% (Tech, Feed & Food Grade)",
      "chemicalName": "Sodium Hydrogen Carbonate",
      "synonyms": [
        "Baking Soda",
        "Bicarb Soda",
        "Sodium Acid Carbonate"
      ],
      "formula": "NaHCO3",
      "formulaHtml": "NaHCO<sub>3</sub>",
      "cas": "144-55-8",
      "ecNumber": "205-633-8",
      "hsCode": "2836.30.00",
      "category": "inorganic-alkalis",
      "categoryLabel": "Basic Inorganic & Alkalis",
      "industries": [
        "textile-dyeing",
        "leather-tannery",
        "chemical-trading",
        "detergent-glass-ceramics"
      ],
      "purity": "99.0% – 99.5% Min",
      "standard": "GB/T 1606-2008 / GB 1886.2-2015",
      "originPorts": [
        "Qingdao Port",
        "Tianjin Port"
      ],
      "originProvinces": "Inner Mongolia / Shandong / Henan, China",
      "packaging": "25kg PP+PE Woven or Multi-Wall Kraft Bags",
      "fclLoadMt": 27,
      "fclLoadDisplay": "25.0 – 27.0 MT (1,000–1,080 × 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Non-DG cargo under HS Code 2836.30.00; Food/Feed grade requires COA & Health/Sanitary Cert if imported for feed/food.",
      "complianceBadges": [
        "99.5% High Purity",
        "Non-DG Heavy Load",
        "Natural & Synthetic"
      ],
      "shortSummary": "Fine crystalline Sodium Bicarbonate 99.5% for reactive textile printing paste alkali buffering, Savar chrome leather basification/neutralization, and industrial buffering.",
      "bdMarketInsight": "Essential mild alkali in textile reactive printing (prevents premature dye hydrolysis during drying prior to steaming) and chrome-tanned wet-blue leather neutralization.",
      "applications": [
        "Mild alkali donor in reactive dye printing pastes for cotton and viscose fabrics",
        "Uniform pH neutralization of chrome-tanned leather (wet blue) in Savar tanneries",
        "Flue-gas desulfurization, fire extinguisher dry powder, and detergent formulation"
      ],
      "coaSpecs": [
        {
          "parameter": "Total Alkali (as NaHCO3)",
          "spec": "≥ 99.0% – 100.5%",
          "typical": "99.6%",
          "method": "GB/T 1606-2008"
        },
        {
          "parameter": "Loss on Drying (Moisture)",
          "spec": "≤ 0.20%",
          "typical": "0.07%",
          "method": "GB/T 1606-2008"
        },
        {
          "parameter": "pH (10 g/L Solution)",
          "spec": "≤ 8.6",
          "typical": "8.3",
          "method": "GB/T 1606-2008"
        },
        {
          "parameter": "Chloride (as NaCl)",
          "spec": "≤ 0.40%",
          "typical": "0.12%",
          "method": "GB/T 1606-2008"
        }
      ]
    },
    {
      "slug": "glacial-acetic-acid-99-85",
      "sku": "HS-GAA-9985",
      "name": "Glacial Acetic Acid 99.85% (GAA)",
      "chemicalName": "Ethanoic Acid (Glacial)",
      "synonyms": [
        "GAA 99.85%",
        "Acetic Acid Glacial",
        "Methane Carboxylic Acid"
      ],
      "formula": "CH3COOH",
      "formulaHtml": "CH<sub>3</sub>COOH",
      "cas": "64-19-7",
      "ecNumber": "200-580-7",
      "hsCode": "2915.21.00",
      "category": "organic-acids-chelates",
      "categoryLabel": "Organic Acids, Chelates & Phosphates",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "chemical-trading",
        "leather-tannery"
      ],
      "purity": "99.85% Min (Virgin Industrial & Textile Grade)",
      "standard": "GB/T 1628-2020 (Superior Grade)",
      "originPorts": [
        "Qingdao Port",
        "Shanghai Port",
        "Nanjing / Ningbo Port"
      ],
      "originProvinces": "Jiangsu / Shandong / Shanghai, China",
      "packaging": "30kg / 35kg / 215kg HDPE Drums or 1,050kg IBC Totes",
      "fclLoadMt": 21,
      "fclLoadDisplay": "21.0 MT (600 × 35kg Drums or 20 × 1050kg IBCs per 20ft FCL)",
      "unitWeightKg": 35,
      "imoClass": "IMO Class 8 (Corrosive) + Sub-risk Class 3 (Flammable), UN 2789",
      "dgStatus": "DG Class 8 (3)",
      "regulatoryNote": "HS Code 2915.21.00; requires accurate purity & batch COA matching B/L for smooth Chattogram customs assessment.",
      "complianceBadges": [
        "99.85% Virgin Monomer",
        "Fe ≤ 1.0 ppm",
        "ZDHC MRSL Compliant"
      ],
      "shortSummary": "Methanol-carbonylation virgin Glacial Acetic Acid 99.85% with ultra-low iron (<1 ppm) and zero heavy-metal contamination for dyehouse pH buffering and alkali neutralization.",
      "bdMarketInsight": "Every textile dyeing and washing unit in Bangladesh consumes GAA daily to neutralize residual caustic/soda ash after bleaching and reactive dyeing, and to maintain pH 4.5–5.5 in polyester disperse dyeing.",
      "applications": [
        "Core neutralization of fabric after caustic mercerizing, scouring, and reactive dyeing",
        "Precision dyebath pH regulation (pH 4.5–5.5) in high-temperature polyester disperse dyeing",
        "Garment washing pH adjustment for cellulase enzyme bio-polishing and cationic softener application",
        "Synthesis of textile auxiliaries, acetate esters, and packaging adhesives"
      ],
      "coaSpecs": [
        {
          "parameter": "Acetic Acid Content (w/w)",
          "spec": "≥ 99.85%",
          "typical": "99.91%",
          "method": "GB/T 1628-2020"
        },
        {
          "parameter": "Water Content (Moisture)",
          "spec": "≤ 0.15%",
          "typical": "0.07%",
          "method": "GB/T 1628-2020"
        },
        {
          "parameter": "Color (Pt-Co / Hazen)",
          "spec": "≤ 10",
          "typical": "< 5",
          "method": "GB/T 1628-2020"
        },
        {
          "parameter": "Formic Acid Content",
          "spec": "≤ 0.05%",
          "typical": "0.015%",
          "method": "GB/T 1628-2020"
        },
        {
          "parameter": "Iron (Fe) Content",
          "spec": "≤ 0.0001% (1.0 ppm)",
          "typical": "0.3 ppm",
          "method": "GB/T 1628-2020"
        }
      ]
    },
    {
      "slug": "formic-acid-85-90",
      "sku": "HS-HCOOH-85",
      "name": "Formic Acid 85% & 90%",
      "chemicalName": "Methanoic Acid",
      "synonyms": [
        "Formic Acid 85%",
        "Formic Acid 90%",
        "Hydrogen Carboxylic Acid"
      ],
      "formula": "HCOOH",
      "formulaHtml": "HCOOH",
      "cas": "64-18-6",
      "ecNumber": "200-579-1",
      "hsCode": "2915.11.00",
      "category": "organic-acids-chelates",
      "categoryLabel": "Organic Acids, Chelates & Phosphates",
      "industries": [
        "leather-tannery",
        "textile-dyeing",
        "chemical-trading"
      ],
      "purity": "85.0% Min & 90.0% Min (First Grade)",
      "standard": "GB/T 2093-2011",
      "originPorts": [
        "Qingdao Port",
        "Tianjin Port"
      ],
      "originProvinces": "Shandong (Luxi / Feicheng), China",
      "packaging": "25kg / 35kg / 250kg HDPE Drums or 1,200kg IBC Totes",
      "fclLoadMt": 24,
      "fclLoadDisplay": "22.4 – 25.0 MT (Drums) / 24.0 MT (20 × 1200kg IBCs)",
      "unitWeightKg": 35,
      "imoClass": "IMO Class 8 (Corrosive) + Sub-risk Class 3, UN 1779",
      "dgStatus": "DG Class 8 (3)",
      "regulatoryNote": "Classified under HS Code 2915.11.00; prime Shandong factory origin with vented UN-approved HDPE drums.",
      "complianceBadges": [
        "Shandong Tier-1 Origin",
        "85% & 90% Grades",
        "Leather & Textile Grade"
      ],
      "shortSummary": "High-strength 85% and 90% Formic Acid from Shandong's premier methyl-formate hydrolysis plants for Savar leather tanning/pickling and high-efficiency textile dye neutralization.",
      "bdMarketInsight": "Crucial organic acid for the BSCIC Tannery Industrial Estate in Savar (deliming, pickling, and fixing anionic leather dyes/fatliquors) and as a non-volatile, high-strength neutralizing acid in textile mills.",
      "applications": [
        "Leather pickling prior to chrome tanning and fixation of acid dyes & fatliquors in Savar tanneries",
        "Strong, volatile-odor-free pH lowering and alkali neutralization in textile dyeing and printing",
        "Natural rubber latex coagulation and silage/feed preservation"
      ],
      "coaSpecs": [
        {
          "parameter": "Formic Acid (HCOOH) Content",
          "spec": "≥ 85.0% / ≥ 90.0%",
          "typical": "85.4% / 90.3%",
          "method": "GB/T 2093-2011"
        },
        {
          "parameter": "Color (Pt-Co / Hazen)",
          "spec": "≤ 10",
          "typical": "5",
          "method": "GB/T 2093-2011"
        },
        {
          "parameter": "Chloride (as Cl-)",
          "spec": "≤ 0.005%",
          "typical": "0.002%",
          "method": "GB/T 2093-2011"
        },
        {
          "parameter": "Sulphate (as SO4 2-)",
          "spec": "≤ 0.002%",
          "typical": "0.001%",
          "method": "GB/T 2093-2011"
        },
        {
          "parameter": "Iron (Fe) Content",
          "spec": "≤ 0.0005% (5 ppm)",
          "typical": "1.5 ppm",
          "method": "GB/T 2093-2011"
        }
      ]
    },
    {
      "slug": "oxalic-acid-99-6",
      "sku": "HS-OXALIC-996",
      "name": "Oxalic Acid 99.6% (Refined Industrial Grade)",
      "chemicalName": "Ethanedioic Acid Dihydrate",
      "synonyms": [
        "Oxalic Acid Dihydrate",
        "Wood Bleach Acid",
        "PP Neutralizer Acid"
      ],
      "formula": "C2H2O4·2H2O",
      "formulaHtml": "H<sub>2</sub>C<sub>2</sub>O<sub>4</sub>·2H<sub>2</sub>O",
      "cas": "6153-56-6",
      "ecNumber": "205-634-3",
      "hsCode": "2917.11.00",
      "category": "organic-acids-chelates",
      "categoryLabel": "Organic Acids, Chelates & Phosphates",
      "industries": [
        "denim-washing",
        "textile-dyeing",
        "leather-tannery",
        "chemical-trading"
      ],
      "purity": "99.6% Min (Refined White Crystal)",
      "standard": "GB/T 1626-2008",
      "originPorts": [
        "Qingdao Port",
        "Tianjin Port",
        "Xiamen Port"
      ],
      "originProvinces": "Shandong / Inner Mongolia / Fujian, China",
      "packaging": "25kg PP Woven Bags with Inner PE Liner",
      "fclLoadMt": 25,
      "fclLoadDisplay": "25.0 – 27.0 MT (1,000–1,080 × 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "IMO Class 8, UN 3260 (or Non-DG per carrier schedule)",
      "dgStatus": "Class 8 / Non-DG",
      "regulatoryNote": "Imported under Bangladesh Customs HS Code 2917.11.00; also referenced by anhydrous CAS 144-62-7.",
      "complianceBadges": [
        "99.6% Refined Crystal",
        "Rust & Iron Stain Remover",
        "Denim Wash Essential"
      ],
      "shortSummary": "Free-flowing 99.6% Oxalic Acid Dihydrate crystal for denim potassium permanganate (PP) spray neutralization, iron/rust spot removal on fabrics, and leather bleaching.",
      "bdMarketInsight": "Widely used in Bangladesh garment washing plants for neutralizing residual manganese dioxide stains after PP spray/sponge treatments on vintage denim, and removing loom rust marks on grey fabric.",
      "applications": [
        "Neutralization and clearing of Potassium Permanganate (PP) vintage wash treatments on denim jeans",
        "Chelation and removal of stubborn iron/rust stains from cotton and synthetic textiles",
        "Bleaching and crust color lightening in vegetable and chrome leather tanning",
        "Marble/granite floor polishing and metal surface cleaning"
      ],
      "coaSpecs": [
        {
          "parameter": "Oxalic Acid (H2C2O4·2H2O) Purity",
          "spec": "≥ 99.6%",
          "typical": "99.75%",
          "method": "GB/T 1626-2008"
        },
        {
          "parameter": "Sulphate (as SO4 2-)",
          "spec": "≤ 0.04%",
          "typical": "0.02%",
          "method": "GB/T 1626-2008"
        },
        {
          "parameter": "Heavy Metals (as Pb)",
          "spec": "≤ 0.001% (10 ppm)",
          "typical": "5 ppm",
          "method": "GB/T 1626-2008"
        },
        {
          "parameter": "Iron (Fe) Content",
          "spec": "≤ 0.0015% (15 ppm)",
          "typical": "8 ppm",
          "method": "GB/T 1626-2008"
        },
        {
          "parameter": "Ignition Residue (Ash)",
          "spec": "≤ 0.08%",
          "typical": "0.03%",
          "method": "GB/T 1626-2008"
        }
      ]
    },
    {
      "slug": "citric-acid-monohydrate-anhydrous",
      "sku": "HS-CITRIC-995",
      "name": "Citric Acid Monohydrate & Anhydrous (99.5%–100.5%)",
      "chemicalName": "2-Hydroxypropane-1,2,3-Tricarboxylic Acid",
      "synonyms": [
        "CAM",
        "CAA",
        "Citric Acid Monohydrate",
        "Citric Acid Anhydrous"
      ],
      "formula": "C6H8O7·H2O",
      "formulaHtml": "C<sub>6</sub>H<sub>8</sub>O<sub>7</sub>·H<sub>2</sub>O",
      "cas": "5949-29-1",
      "ecNumber": "201-069-1",
      "hsCode": "2918.14.00",
      "category": "organic-acids-chelates",
      "categoryLabel": "Organic Acids, Chelates & Phosphates",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "etp-wtp",
        "chemical-trading",
        "detergent-glass-ceramics"
      ],
      "purity": "99.5% – 100.5% (BP / USP / FCC / Industrial Grade)",
      "standard": "GB 1886.235-2016 / BP / USP",
      "originPorts": [
        "Qingdao Port",
        "Lianyungang Port"
      ],
      "originProvinces": "Shandong (Ensign / TTCA / RZBC / Lemon Star), China",
      "packaging": "25kg Multi-Wall Kraft Paper-Plastic Composite or PP Bags",
      "fclLoadMt": 25,
      "fclLoadDisplay": "25.0 MT (Unpalletized) / 20.0 MT (Palletized) per 20ft FCL",
      "unitWeightKg": 25,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "HS Code 2918.14.00; available in Monohydrate (CAS 5949-29-1, 8-40 mesh) and Anhydrous (CAS 77-92-9, 30-100 mesh).",
      "complianceBadges": [
        "Tier-1 Shandong Brands",
        "Non-Yellowing Acid",
        "ZDHC & Eco-Friendly"
      ],
      "shortSummary": "Tier-1 Shandong fermentation Citric Acid (Monohydrate & Anhydrous) for odor-free, non-yellowing textile finishing pH adjustment, RO membrane cleaning, and green chelation.",
      "bdMarketInsight": "Increasingly favored by export-oriented Bangladesh knit/woven finishing plants over volatile acids because it causes zero yellowing on optical-brightened white fabrics and has zero pungent odor.",
      "applications": [
        "Non-yellowing, odorless pH neutralization in white/pastel knit and woven fabric finishing",
        "Eco-friendly trivalent metal ion chelating agent (Fe3+, Ca2+, Mg2+) in scouring and bleaching",
        "Chemical cleaning in place (CIP) of inorganic scaling on RO membranes and boilers",
        "Liquid detergent, home care, beverage, and pharmaceutical formulation"
      ],
      "coaSpecs": [
        {
          "parameter": "Citric Acid Assay",
          "spec": "99.5% – 100.5%",
          "typical": "99.9%",
          "method": "BP / USP"
        },
        {
          "parameter": "Water Content (CAM / CAA)",
          "spec": "CAM: 7.5–8.8% | CAA: ≤ 0.5%",
          "typical": "8.2% / 0.15%",
          "method": "BP / USP"
        },
        {
          "parameter": "Sulphated Ash",
          "spec": "≤ 0.05%",
          "typical": "0.02%",
          "method": "BP / USP"
        },
        {
          "parameter": "Heavy Metals",
          "spec": "≤ 5 ppm",
          "typical": "< 2 ppm",
          "method": "BP / USP"
        },
        {
          "parameter": "Oxalate",
          "spec": "≤ 100 ppm",
          "typical": "< 30 ppm",
          "method": "BP / USP"
        }
      ]
    },
    {
      "slug": "sodium-gluconate-99",
      "sku": "HS-NAGLU-99",
      "name": "Sodium Gluconate 99% (High-Alkali Chelating Grade)",
      "chemicalName": "Sodium D-Gluconate",
      "synonyms": [
        "Gluconic Acid Sodium Salt",
        "Alkali Sequestrant",
        "E576"
      ],
      "formula": "C6H11NaO7",
      "formulaHtml": "C<sub>6</sub>H<sub>11</sub>NaO<sub>7</sub>",
      "cas": "527-07-1",
      "ecNumber": "208-407-7",
      "hsCode": "2918.16.00",
      "category": "organic-acids-chelates",
      "categoryLabel": "Organic Acids, Chelates & Phosphates",
      "industries": [
        "textile-dyeing",
        "chemical-trading",
        "detergent-glass-ceramics"
      ],
      "purity": "99.0% Min (White Crystalline Powder)",
      "standard": "GB/T 26325-2010",
      "originPorts": [
        "Qingdao Port",
        "Tianjin Port"
      ],
      "originProvinces": "Shandong / Hebei, China",
      "packaging": "25kg PP Woven or Kraft Paper Bags with PE Liner",
      "fclLoadMt": 26,
      "fclLoadDisplay": "25.0 – 26.0 MT (1,000–1,040 × 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Non-DG cargo under Bangladesh Customs HS Code 2918.16.00; biodegradable alternative to EDTA/NTA.",
      "complianceBadges": [
        "Biodegradable Chelate",
        "Stable in Concentrated NaOH",
        "Non-DG"
      ],
      "shortSummary": "Biodegradable organic chelating agent with unmatched stability in hot concentrated caustic soda baths, binding Iron (Fe3+), Calcium, and Magnesium during cotton scouring and mercerizing.",
      "bdMarketInsight": "Essential raw material for Bangladesh textile auxiliary formulators and dye houses operating on high-iron groundwater in Gazipur, Savar, and Narayanganj, as well as concrete admixture producers.",
      "applications": [
        "High-alkali chelating & sequestering agent in cotton scouring, peroxide bleaching, and mercerizing",
        "Prevents catalytic cellulose pin-holing caused by trace Fe3+ and Cu2+ ions during H2O2 bleaching",
        "Industrial bottle washing, metal degreasing, and high-range water-reducing concrete retarder"
      ],
      "coaSpecs": [
        {
          "parameter": "Sodium Gluconate Assay",
          "spec": "≥ 99.0%",
          "typical": "99.3%",
          "method": "GB/T 26325"
        },
        {
          "parameter": "Loss on Drying",
          "spec": "≤ 0.50%",
          "typical": "0.22%",
          "method": "GB/T 26325"
        },
        {
          "parameter": "Reducing Substances",
          "spec": "≤ 0.50%",
          "typical": "0.18%",
          "method": "GB/T 26325"
        },
        {
          "parameter": "pH (10% Solution)",
          "spec": "6.2 – 7.8",
          "typical": "7.1",
          "method": "GB/T 26325"
        }
      ]
    },
    {
      "slug": "stpp-shmp-phosphates",
      "sku": "HS-STPP-SHMP",
      "name": "STPP 94% & SHMP 68% (Industrial & Water Softening Phosphates)",
      "chemicalName": "Sodium Tripolyphosphate (STPP) & Sodium Hexametaphosphate (SHMP)",
      "synonyms": [
        "STPP 94%",
        "SHMP 68%",
        "Calgon",
        "Graham Salt",
        "Pentasodium Triphosphate"
      ],
      "formula": "Na5P3O10 / (NaPO3)6",
      "formulaHtml": "Na<sub>5</sub>P<sub>3</sub>O<sub>10</sub> / (NaPO<sub>3</sub>)<sub>6</sub>",
      "cas": "7758-29-4",
      "ecNumber": "231-838-7",
      "hsCode": "2835.31.00",
      "category": "organic-acids-chelates",
      "categoryLabel": "Organic Acids, Chelates & Phosphates",
      "industries": [
        "textile-dyeing",
        "detergent-glass-ceramics",
        "etp-wtp",
        "chemical-trading"
      ],
      "purity": "STPP: 94.0% Min (P2O5 ≥ 57%) | SHMP: 68.0% Min Total P2O5",
      "standard": "GB/T 9983-2004 (STPP) / HG/T 2519-2017 (SHMP)",
      "originPorts": [
        "Chongqing / Shanghai Port",
        "Fangchenggang / Qinzhou Port"
      ],
      "originProvinces": "Sichuan / Yunnan / Guizhou / Hubei, China",
      "packaging": "25kg PP Woven Bags with Double PE Inner Liner",
      "fclLoadMt": 26,
      "fclLoadDisplay": "25.0 – 27.0 MT (1,000–1,080 × 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "STPP uses HS Code 2835.31.00; SHMP (CAS 10124-56-8) uses HS Code 2835.39.00.",
      "complianceBadges": [
        "Sichuan/Hubei Phosphate Origin",
        "Hard Water Softener",
        "Ceramic & Detergent Grade"
      ],
      "shortSummary": "Thermal-process Sodium Tripolyphosphate (STPP 94%) and glassy Sodium Hexametaphosphate (SHMP 68%) from Southwest China's phosphate hub for dyebath water softening, detergents, and ceramic deflocculation.",
      "bdMarketInsight": "SHMP 68% (\"Calgon\") is widely used in Bangladesh textile dyeing houses to soften hard borewell water before adding dyes, while STPP 94% is a staple for detergent and ceramic tile plants.",
      "applications": [
        "SHMP 68%: Dyebath water softening and Ca2+/Mg2+ sequestration in textile pretreatment and dyeing",
        "STPP 94%: Primary builder and soil-suspending agent in synthetic detergent powders",
        "Ceramic clay slip deflocculant and viscosity reducer in sanitaryware and tile factories"
      ],
      "coaSpecs": [
        {
          "parameter": "STPP Assay (Na5P3O10) / Total P2O5",
          "spec": "≥ 94.0% / ≥ 57.0%",
          "typical": "95.2% / 57.4%",
          "method": "GB/T 9983-2004"
        },
        {
          "parameter": "SHMP Total P2O5 / Inactive P2O5",
          "spec": "≥ 68.0% / ≤ 7.5%",
          "typical": "68.3% / 6.8%",
          "method": "HG/T 2519-2017"
        },
        {
          "parameter": "Water Insoluble Matter",
          "spec": "≤ 0.05%",
          "typical": "0.02%",
          "method": "GB/T 9983-2004"
        },
        {
          "parameter": "Whiteness",
          "spec": "≥ 90.0%",
          "typical": "93.5%",
          "method": "GB/T 9983-2004"
        }
      ]
    },
    {
      "slug": "wetting-scouring-mercerizing-agents",
      "sku": "HS-AUX-WET",
      "name": "Wetting, Scouring & Mercerizing Agents (APEO/NPEO-Free)",
      "chemicalName": "Fatty Alcohol Ethoxylates (AEO-7/AEO-9) & Alkali-Stable Phosphate Esters",
      "synonyms": [
        "Low-Foam Scouring Agent",
        "Mercerizing Wetting Agent",
        "AEO-9",
        "Pre-Treatment Detergent"
      ],
      "formula": "RO(CH2CH2O)nH",
      "formulaHtml": "RO(CH<sub>2</sub>CH<sub>2</sub>O)<sub>n</sub>H",
      "cas": "68439-50-9",
      "ecNumber": "500-213-3",
      "hsCode": "3402.90.00",
      "category": "textile-auxiliaries",
      "categoryLabel": "Textile Pretreatment, Dyeing & Finishing Auxiliaries",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "chemical-trading"
      ],
      "purity": "99% Conc. Base (AEO-7/9) & 1:4 High-Conc. Formulated Blends",
      "standard": "ZDHC MRSL v3.1 Level 3 / OEKO-TEX® Eco Passport",
      "originPorts": [
        "Shanghai Port",
        "Ningbo Port",
        "Guangzhou Port"
      ],
      "originProvinces": "Zhejiang / Jiangsu / Guangdong, China",
      "packaging": "125kg / 200kg HDPE Drums or 1,000kg IBC Totes",
      "fclLoadMt": 20,
      "fclLoadDisplay": "19.2 – 20.0 MT (Drums / 20 × 1000kg IBCs per 20ft FCL)",
      "unitWeightKg": 200,
      "imoClass": "Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Classified under HS Code 3402.90.00 or 3809.91.00; 100% APEO/NPEO-Free declaration provided on COA/SDS.",
      "complianceBadges": [
        "ZDHC MRSL v3.1",
        "100% APEO/NPEO-Free",
        "High-Alkali Stable (300 g/L NaOH)"
      ],
      "shortSummary": "100% APEO/NPEO-free non-ionic/anionic wetting, emulsifying, and mercerizing auxiliaries engineered for rapid cotton wax/pectin removal and stability up to 300 g/L Caustic Soda.",
      "bdMarketInsight": "Available both as ready-to-use mill grades and 100% active concentrated bases (1:4 to 1:6 dilution) for Bangladeshi textile auxiliary blenders and large composite mills.",
      "applications": [
        "Rapid wetting, wax emulsification, and oil scouring in continuous and exhaust cotton pretreatment",
        "High-caustic mercerizing wetting agent (stable at 260–300 g/L NaOH without phase separation)",
        "Low-foam jet/airflow dyeing machine scouring at high shear rates"
      ],
      "coaSpecs": [
        {
          "parameter": "Active Content (Concentrate Base)",
          "spec": "≥ 90.0% – 99.0%",
          "typical": "99.2%",
          "method": "GB/T 17829"
        },
        {
          "parameter": "APEO / NPEO / OPEO Content",
          "spec": "Not Detected (< 10 ppm)",
          "typical": "ND (ZDHC Compliant)",
          "method": "LC-MS / ISO 18254"
        },
        {
          "parameter": "Alkali Resistance (NaOH)",
          "spec": "Up to 180–300 g/L (Grade Dependent)",
          "typical": "Clear, No Separation",
          "method": "Internal Mill Std"
        },
        {
          "parameter": "Draves Sinking Time (2 g/L)",
          "spec": "≤ 5 Seconds",
          "typical": "2.8 Seconds",
          "method": "AATCC 17"
        }
      ]
    },
    {
      "slug": "peroxide-stabilizer-fixing-soaping-agents",
      "sku": "HS-AUX-DYE",
      "name": "Formaldehyde-Free Fixing, Leveling, Soaping & Peroxide Stabilizer Concentrates",
      "chemicalName": "Polyamine Fixing Resin, Acrylic-Maleic Copolymer & Organic Stabilizer Concentrates",
      "synonyms": [
        "Formaldehyde-Free Dye Fixative",
        "Reactive Leveling Agent",
        "Anti-Backstaining Soaping Agent",
        "Silicate-Free Stabilizer"
      ],
      "formula": "Polymeric Condensate",
      "formulaHtml": "Polymeric Condensate",
      "cas": "26062-79-3",
      "ecNumber": "Polymer",
      "hsCode": "3809.91.00",
      "category": "textile-auxiliaries",
      "categoryLabel": "Textile Pretreatment, Dyeing & Finishing Auxiliaries",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "chemical-trading"
      ],
      "purity": "60% – 75% High-Concentration Mother Liquor (1:3 to 1:5 Dilution)",
      "standard": "ZDHC MRSL v3.1 / OEKO-TEX® Class I (< 16 ppm Formaldehyde)",
      "originPorts": [
        "Shanghai Port",
        "Ningbo Port",
        "Qingdao Port"
      ],
      "originProvinces": "Zhejiang / Jiangsu / Shandong, China",
      "packaging": "125kg / 200kg HDPE Drums or 1,000kg IBC Totes",
      "fclLoadMt": 20,
      "fclLoadDisplay": "20.0 MT (100 × 200kg Drums or 20 × 1000kg IBCs per 20ft FCL)",
      "unitWeightKg": 200,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Imported under Bangladesh Customs Textile Auxiliary HS Code 3809.91.00; qualifies for Bonded Warehouse UD import.",
      "complianceBadges": [
        "Formaldehyde-Free (<16 ppm)",
        "1:4 Conc. Mother Liquor",
        "Grade 4.5+ Wet Fastness"
      ],
      "shortSummary": "High-concentration mother liquors of Formaldehyde-Free Reactive Fixing Agents, Silicate-Free Peroxide Stabilizers, and Anti-Redeposition Soaping Agents for export dyeing mills.",
      "bdMarketInsight": "Sourcing 60%–75% concentrated mother liquors directly from China allows Bangladesh mills and chemical houses to cut freight and packaging costs by 65% compared to importing diluted drums.",
      "applications": [
        "Formaldehyde-Free Fixing Agent: Elevates wet rubbing, washing, and perspiration fastness of deep red/black/turquoise reactive dyes to Grade 4–4.5",
        "Silicate-Free Peroxide Stabilizer: Controls H2O2 decomposition rate without hard silicate scale buildup on dyeing rollers",
        "Soaping-Off Agent: Strips unfixed hydrolyzed reactive dyes in 1 bath at 90–95°C without staining white stripes"
      ],
      "coaSpecs": [
        {
          "parameter": "Solid / Active Content (Concentrate)",
          "spec": "≥ 60.0% – 75.0%",
          "typical": "65.4%",
          "method": "GB/T 1725"
        },
        {
          "parameter": "Free Formaldehyde",
          "spec": "Not Detected (< 15 ppm)",
          "typical": "ND (< 5 ppm)",
          "method": "ISO 14184-1"
        },
        {
          "parameter": "Wet Rubbing & Wash Fastness Upgrade",
          "spec": "+1.0 to +1.5 Grade Improvement",
          "typical": "Grade 4.5 Achieved",
          "method": "ISO 105-C06 / X12"
        },
        {
          "parameter": "Shade Change (ΔE)",
          "spec": "≤ 0.4 (Minimal Shade Shift)",
          "typical": "0.22",
          "method": "CMC (2:1)"
        }
      ]
    },
    {
      "slug": "hydrophilic-block-silicone-softener-flakes",
      "sku": "HS-AUX-FINISH",
      "name": "Hydrophilic Block Silicone Oil (70–100%) & Cationic Softener Flakes (100%)",
      "chemicalName": "Polyether-Amino Block Copolymer Polysiloxane & Fatty Acid Imidazoline Esterquat Flakes",
      "synonyms": [
        "Block Silicone Crude Oil",
        "Amino Silicone Oil",
        "Cationic Softener Flakes",
        "Non-Ionic Softener Beads"
      ],
      "formula": "R-Si(CH3)2-O-[Si(R)(CH3)O]n",
      "formulaHtml": "R-Si(CH<sub>3</sub>)<sub>2</sub>-O-[Si(R)(CH<sub>3</sub>)O]<sub>n</sub>",
      "cas": "68554-65-4",
      "ecNumber": "Polymer",
      "hsCode": "3910.00.00",
      "category": "textile-auxiliaries",
      "categoryLabel": "Textile Pretreatment, Dyeing & Finishing Auxiliaries",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "chemical-trading"
      ],
      "purity": "Silicone Crude Oil: 70%–100% Active | Softener Flakes: 100% Solid Active",
      "standard": "ZDHC MRSL v3.1 (D4/D5/D6 Cyclosiloxane < 1000 ppm)",
      "originPorts": [
        "Shanghai Port",
        "Ningbo Port",
        "Huangpu Port"
      ],
      "originProvinces": "Zhejiang / Jiangsu / Guangdong, China",
      "packaging": "Silicone Oil: 120kg/200kg Drums | Softener Flakes: 25kg PP Woven Bags",
      "fclLoadMt": 19,
      "fclLoadDisplay": "Silicone Oil: 19.2 MT (Drums) | Softener Flakes: 17.5–20.0 MT (25kg Bags)",
      "unitWeightKg": 200,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Silicone Oils use HS Code 3910.00.00; Softener Flakes use HS Code 3809.91.00.",
      "complianceBadges": [
        "Low D4/D5/D6 (<0.1%)",
        "Instant Hydrophilicity <3s",
        "1:5 Emulsifiable Crude"
      ],
      "shortSummary": "Self-emulsifying Hydrophilic Block Silicone Crude Oils (70%–100%) and cold/hot-water dispersible Cationic & Non-Ionic Softener Flakes for luxury knitwear, terry towels, and denim.",
      "bdMarketInsight": "European and US apparel buyers require strict control over cyclic siloxanes (D4/D5/D6 < 1000 ppm) and phenolic yellowing; our Zhejiang silicone principals supply EU REACH & ZDHC Gateway verified batches.",
      "applications": [
        "Hydrophilic Block Silicone: Imparts bouncy, cool, ultra-soft handfeel with <3 second water absorbency on cotton jersey, fleece, and terry towels",
        "Amino Silicone Micro-Emulsion Base: Deep, silky drape and elasticity recovery on woven twill, poplin, and denim",
        "Cationic & Weak-Cationic Softener Flakes: Diluted at 5%–10% in mills for lofty, antistatic finishing of yarn and knit fabrics"
      ],
      "coaSpecs": [
        {
          "parameter": "Active Silicone / Solid Content",
          "spec": "Crude Oil: 70–98% | Flakes: ≥ 99%",
          "typical": "80.5% / 99.4%",
          "method": "GB/T 1725"
        },
        {
          "parameter": "Water Absorbency (Drop Test)",
          "spec": "≤ 3.0 Seconds (Hydrophilic Grade)",
          "typical": "1.8 Seconds",
          "method": "AATCC 79"
        },
        {
          "parameter": "Cyclic Siloxanes (D4 / D5 / D6 Each)",
          "spec": "< 1,000 ppm (0.1% w/w)",
          "typical": "< 350 ppm",
          "method": "GC-MS (REACH/ZDHC)"
        },
        {
          "parameter": "Phenolic & Thermal Yellowing (180°C)",
          "spec": "Grade 4.5 Min",
          "typical": "Grade 4.5–5.0",
          "method": "ISO 105-X18"
        }
      ]
    },
    {
      "slug": "textile-enzymes-cellulase-catalase-amylase",
      "sku": "HS-ENZ-BIO",
      "name": "Textile Enzymes (Bio-Polishing Cellulase, Peroxide-Killer Catalase & Amylase)",
      "chemicalName": "Fermentation-Derived Neutral/Acid Cellulase, Catalase & Alpha-Amylase Concentrates",
      "synonyms": [
        "Bio-Polishing Enzyme",
        "Peroxide Killer Catalase",
        "Desizing Amylase",
        "Denim Abrasion Cellulase"
      ],
      "formula": "Enzymatic Protein Complex",
      "formulaHtml": "Enzymatic Biocatalyst",
      "cas": "9012-54-8",
      "ecNumber": "232-734-4",
      "hsCode": "3507.90.00",
      "category": "textile-auxiliaries",
      "categoryLabel": "Textile Pretreatment, Dyeing & Finishing Auxiliaries",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "chemical-trading"
      ],
      "purity": "High-Activity Crude Concentrates (Catalase: 50k–200k U/mL | Cellulase: 10k–50k NCU/g)",
      "standard": "GOTS v7.0 / ZDHC MRSL v3.1 / OEKO-TEX® Eco Passport",
      "originPorts": [
        "Qingdao Port",
        "Shanghai Port",
        "Tianjin Port"
      ],
      "originProvinces": "Shandong / Jiangsu / Hebei, China",
      "packaging": "25kg / 30kg HDPE Jerrycans or 200kg HDPE Drums (Liquid) & 25kg Fiber Drums (Granular)",
      "fclLoadMt": 20,
      "fclLoadDisplay": "18.0 – 20.0 MT (Drums / Jerrycans per 20ft FCL)",
      "unitWeightKg": 30,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Imported under Bangladesh Customs Enzyme HS Code 3507.90.00; qualifies for duty-free Bonded Warehouse import.",
      "complianceBadges": [
        "GOTS & ZDHC Approved",
        "Water-Saving Catalase",
        "1:5 Crude Concentrate"
      ],
      "shortSummary": "High-activity crude Neutral & Acid Bio-Polishing Cellulase, 15-minute Peroxide-Killer Catalase, and Woven Desizing Alpha-Amylase from top Chinese industrial bio-fermentation plants.",
      "bdMarketInsight": "Catalase (Peroxide Killer) saves Bangladesh knit dye houses 1–2 hot water rinse baths per batch by decomposing residual H2O2 into water and oxygen in 15 minutes right inside the dyeing vessel.",
      "applications": [
        "Bio-Polishing Cellulase: Removes surface micro-fibrils and pilling fuzz from cotton knitwear (Grade 4.5 pilling resistance) with <2.5% strength loss",
        "Catalase (Peroxide Killer): Completely eliminates residual H2O2 after bleaching prior to reactive dyeing without draining the bath",
        "Denim Abrasion Granular & Liquid Cellulase: High-contrast stone-free vintage look in garment washing plants",
        "Alpha-Amylase: Rapid starch size removal on woven cotton/blended grey fabrics across 40°C–95°C"
      ],
      "coaSpecs": [
        {
          "parameter": "Catalase Activity (Liquid Crude)",
          "spec": "≥ 50,000 – 200,000 U/mL",
          "typical": "105,000 U/mL",
          "method": "QB/T 2583"
        },
        {
          "parameter": "Neutral / Acid Cellulase Activity",
          "spec": "≥ 15,000 – 50,000 NCU/g",
          "typical": "28,000 NCU/g",
          "method": "CMC / Filter Paper Assay"
        },
        {
          "parameter": "Optimal Operating pH Range",
          "spec": "Acid: 4.5–5.5 | Neutral: 5.8–7.0",
          "typical": "Complies",
          "method": "Mill Application"
        },
        {
          "parameter": "Pilling Resistance After Bio-Polish",
          "spec": "≥ Grade 4.0 – 4.5",
          "typical": "Grade 4.5",
          "method": "ISO 12945-2"
        }
      ]
    },
    {
      "slug": "optical-brightening-agents-oba-4bm-bbu-vbl",
      "sku": "HS-OBA-SERIES",
      "name": "Optical Brightening Agents — OBA (4BM / BA-L, BBU, VBL, CXT & OB-1)",
      "chemicalName": "Fluorescent Whitening Agents (Stilbene Disulfonate & Triazine Derivatives)",
      "synonyms": [
        "OBA 4BM",
        "OBA BA-L (C.I. 113)",
        "OBA BBU (C.I. 220)",
        "OBA VBL (C.I. 85)",
        "OBA CXT (C.I. 71)",
        "OBA ER / OB-1"
      ],
      "formula": "C40H40N12O8S2Na2",
      "formulaHtml": "C<sub>40</sub>H<sub>40</sub>N<sub>12</sub>O<sub>8</sub>S<sub>2</sub>Na<sub>2</sub>",
      "cas": "12768-92-2",
      "ecNumber": "235-807-2",
      "hsCode": "3204.20.00",
      "category": "textile-auxiliaries",
      "categoryLabel": "Textile Pretreatment, Dyeing & Finishing Auxiliaries",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "detergent-glass-ceramics",
        "chemical-trading"
      ],
      "purity": "100% / 200% / 300% Export Standard UV E-Value Strength (Liquid & Powder)",
      "standard": "HG/T 3726 / ZDHC MRSL v3.1 Compliant",
      "originPorts": [
        "Qingdao Port",
        "Shanghai Port",
        "Tianjin Port"
      ],
      "originProvinces": "Hebei / Shandong / Zhejiang, China",
      "packaging": "25kg Fiber Drums with Double PE Liners (Powder) or 200kg/1000kg IBC (Liquid BA-L)",
      "fclLoadMt": 15,
      "fclLoadDisplay": "14.0 – 16.0 MT (Fiber Drums) / 20.0 MT (Liquid IBCs) per 20ft FCL",
      "unitWeightKg": 25,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Classified under dedicated Bangladesh Customs Fluorescent Brightening Agent HS Code 3204.20.00.",
      "complianceBadges": [
        "High CIE Whiteness",
        "Peroxide Bath Stable",
        "Cotton & Polyester Grades"
      ],
      "shortSummary": "Full spectrum of Stilbene Optical Brightening Agents for brilliant bluish-white and violet-white finishing of cotton knit/woven fabrics (4BM, BA-L, BBU, VBL), polyester (ER-I/II/III), and detergents (CBS-X, CXT).",
      "bdMarketInsight": "Full-white cotton T-shirts, dress shirts, and bedsheets exported from Bangladesh require CIE Whiteness > 145–155, achieved by dosing OBA 4BM/BA-L or BBU directly in the H2O2 bleaching or pad-thermosol bath.",
      "applications": [
        "OBA 4BM / BA-L (C.I. 113) & BBU (C.I. 220): Exhaust and pad-batch optical brightening of cotton knits, yarn, and woven fabrics",
        "OBA ER-I / ER-II (C.I. 199): High-temperature & pad-thermosol whitening of polyester and CVC/PC blends",
        "OBA CXT (C.I. 71) & CBS-X (C.I. 351): High-stability whitening in synthetic laundry detergent powders and liquid detergents",
        "OBA OB-1 (C.I. 393): Masterbatch, recycled PET flake, and engineering plastic whitening"
      ],
      "coaSpecs": [
        {
          "parameter": "UV Extinction Value (E 1% 1cm)",
          "spec": "BBU: ≥ 360 | VBL: ≥ 540 | CXT: ≥ 510",
          "typical": "100.5% Std Strength",
          "method": "HG/T 3726"
        },
        {
          "parameter": "Shade & CIE Whiteness vs. Standard",
          "spec": "Similar (ΔW ≤ ±1.5)",
          "typical": "Complies (Bluish/Violet)",
          "method": "Datacolor CIE Whiteness"
        },
        {
          "parameter": "Insoluble Matter in Water",
          "spec": "≤ 0.20%",
          "typical": "0.06%",
          "method": "HG/T 3726"
        },
        {
          "parameter": "Fineness (Residue on 180 μm Sieve)",
          "spec": "≤ 2.0%",
          "typical": "0.5%",
          "method": "HG/T 3726"
        }
      ]
    },
    {
      "slug": "reactive-disperse-indigo-dyestuffs",
      "sku": "HS-DYE-SERIES",
      "name": "Reactive Dyes (VS/MCT), Disperse Dyes & Vat Indigo Granular 94%",
      "chemicalName": "Vinyl Sulphone & Bifunctional Reactive Dyes, High-Energy Disperse Dyes & Vat Blue 1 (Indigo 94%)",
      "synonyms": [
        "Reactive Black B 150%",
        "Reactive Deep Black WNN",
        "Reactive Red 195 / Yellow 145",
        "Disperse Black ECT 300%",
        "Indigo Granular 94%"
      ],
      "formula": "Synthetic Chromophore Series",
      "formulaHtml": "C<sub>16</sub>H<sub>10</sub>N<sub>2</sub>O<sub>2</sub> (Indigo) / Reactive VS-MCT",
      "cas": "17095-24-8",
      "ecNumber": "241-164-5",
      "hsCode": "3204.16.00",
      "category": "dyestuffs",
      "categoryLabel": "Textile Dyestuffs (Reactive, Disperse & Indigo)",
      "industries": [
        "textile-dyeing",
        "denim-washing",
        "chemical-trading"
      ],
      "purity": "100% / 133% / 150% / 300% Export Standard Strength (Salt-Free / Low-PCA)",
      "standard": "ZDHC MRSL v3.1 / OEKO-TEX® Eco Passport (Banned Azo-Free < 20 ppm)",
      "originPorts": [
        "Shanghai Port",
        "Ningbo Port",
        "Qingdao Port"
      ],
      "originProvinces": "Zhejiang (Shaoxing) / Jiangsu / Shandong, China",
      "packaging": "25kg Iron Drums, Fiber Drums, or Heavy-Duty Export Cartons with Double PE Bags",
      "fclLoadMt": 16,
      "fclLoadDisplay": "14.0 – 18.0 MT (Palletized Cartons / Drums per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Reactive Dyes: HS 3204.16.00 | Disperse Dyes: HS 3204.11.00 | Vat Indigo 94% (CAS 482-89-3): HS 3204.15.00 | Sulphur Black: HS 3204.19.00.",
      "complianceBadges": [
        "ZDHC Gateway Listed",
        "Banned Amine / PCA Free",
        "Batch-to-Batch ΔE ≤ 0.3"
      ],
      "shortSummary": "Direct Shaoxing/Jiangsu factory indenting of Cotton Reactive Dyes (RGB, 3RS/3BS/BRF, Black B/WNN), Polyester Disperse Dyes (ECT 300%), Vat Indigo Granular 94%, and Sulphur Black BR 200%.",
      "bdMarketInsight": "Every batch is pre-tested for 24 banned aromatic amines and para-chloroaniline (PCA < 50 ppm) so Bangladesh RMG exporters pass third-party buyer lab audits (ITS, SGS, BV) without risk.",
      "applications": [
        "Reactive Dyes (Yellow 145, Red 195, Blue 19/222, Black 5 / WNN): Exhaust and continuous dyeing of 100% cotton knit and woven fabrics",
        "Disperse Dyes (Black ECT 300%, Blue 79, Red 60/167, Yellow 211): High-temperature (130°C) dyeing of polyester, CVC, and PC blends",
        "Vat Indigo Granular 94% & Sulphur Black BR 200%: Rope and slasher dyeing of export denim warp yarns"
      ],
      "coaSpecs": [
        {
          "parameter": "Tinctorial Strength vs. Standard",
          "spec": "100% ± 2% (or 150% / 300% Spec)",
          "typical": "100.4%",
          "method": "GB/T 2374"
        },
        {
          "parameter": "Shade Difference (ΔE CMC 2:1)",
          "spec": "≤ 0.30",
          "typical": "0.18",
          "method": "Datacolor Spectrophotometer"
        },
        {
          "parameter": "Banned Aromatic Amines (24 Azo List)",
          "spec": "Not Detected (< 20 ppm)",
          "typical": "ND (< 5 ppm)",
          "method": "EN 14362-1"
        },
        {
          "parameter": "Para-Chloroaniline (PCA) Content",
          "spec": "< 50 ppm (ZDHC v3.1)",
          "typical": "< 15 ppm",
          "method": "LC-MS"
        }
      ]
    },
    {
      "slug": "pac-poly-aluminium-chloride-30",
      "sku": "HS-PAC-30",
      "name": "PAC (Poly Aluminium Chloride) 28%–30% Spray-Dried",
      "chemicalName": "Polyaluminium Chloride Hydroxide",
      "synonyms": [
        "PAC 30%",
        "Poly Aluminum Chloride",
        "ETP Primary Coagulant",
        "Water Treatment PAC"
      ],
      "formula": "[Al2(OH)nCl6-n]m",
      "formulaHtml": "[Al<sub>2</sub>(OH)<sub>n</sub>Cl<sub>6-n</sub>]<sub>m</sub>",
      "cas": "1327-41-9",
      "ecNumber": "215-477-2",
      "hsCode": "2827.32.00",
      "category": "etp-water-treatment",
      "categoryLabel": "ETP & Water Treatment Chemicals",
      "industries": [
        "etp-wtp",
        "textile-dyeing",
        "denim-washing",
        "chemical-trading",
        "detergent-glass-ceramics"
      ],
      "purity": "28.0% – 30.0% Min Al2O3 (Spray-Dried Golden Yellow / Light Yellow Powder)",
      "standard": "GB/T 22627-2022 / GB 15892-2020",
      "originPorts": [
        "Qingdao Port",
        "Tianjin Port"
      ],
      "originProvinces": "Henan (Gongyi) / Shandong, China",
      "packaging": "25kg PP Woven Bags with Inner PE Liner",
      "fclLoadMt": 25,
      "fclLoadDisplay": "25.0 – 26.0 MT (1,000–1,040 × 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-DG Cargo (or Class 8 in select carriers)",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Imported under Bangladesh Customs HS Code 2827.32.00; low water-insoluble (<0.3%) spray-dried grade prevents dosing pump clogging.",
      "complianceBadges": [
        "30% Al2O3 Spray-Dried",
        "Insolubles ≤ 0.3%",
        "Rapid Floc Formation"
      ],
      "shortSummary": "Spray-dried 30% Al2O3 Poly Aluminium Chloride (PAC) with high basicity (70%–90%) and <0.3% water insolubles for rapid coagulation of textile dyeing effluent and industrial water clarification.",
      "bdMarketInsight": "The backbone coagulant for Bangladesh's 1,500+ textile Effluent Treatment Plants (ETP) and municipal/industrial Water Treatment Plants (WTP), outperforming alum by 3x in settling speed and lower sludge volume.",
      "applications": [
        "Primary inorganic coagulation of suspended solids, COD, and colloidal dyes in textile ETPs",
        "Raw river and surface water clarification in industrial Water Treatment Plants (WTP)",
        "Neutral rosins sizing retention and pitch control in pulp and paper manufacturing"
      ],
      "coaSpecs": [
        {
          "parameter": "Aluminium Oxide (Al2O3) Content",
          "spec": "≥ 28.0% / ≥ 30.0%",
          "typical": "30.2%",
          "method": "GB/T 22627-2022"
        },
        {
          "parameter": "Basicity",
          "spec": "40.0% – 90.0%",
          "typical": "78.5%",
          "method": "GB/T 22627-2022"
        },
        {
          "parameter": "Water Insoluble Matter",
          "spec": "≤ 0.30% (Spray-Dried)",
          "typical": "0.12%",
          "method": "GB/T 22627-2022"
        },
        {
          "parameter": "pH (10 g/L Aqueous Solution)",
          "spec": "3.5 – 5.0",
          "typical": "4.2",
          "method": "GB/T 22627-2022"
        }
      ]
    },
    {
      "slug": "textile-etp-decolorizing-agent-cw08",
      "sku": "HS-DECOLOR-50",
      "name": "Textile ETP Decolorizing Agent (CW-08 / Dicyandiamide Resin 50%)",
      "chemicalName": "Dicyandiamide-Formaldehyde Cationic Quaternary Polymer",
      "synonyms": [
        "Water Decoloring Agent CW-08",
        "BWD-01 Decolorant",
        "Dye Wastewater Color Remover",
        "Cationic Decolorizer"
      ],
      "formula": "(C3H8N4O)n",
      "formulaHtml": "(C<sub>3</sub>H<sub>8</sub>N<sub>4</sub>O)<sub>n</sub>",
      "cas": "55295-98-2",
      "ecNumber": "Polymer",
      "hsCode": "3909.39.00",
      "category": "etp-water-treatment",
      "categoryLabel": "ETP & Water Treatment Chemicals",
      "industries": [
        "etp-wtp",
        "textile-dyeing",
        "denim-washing",
        "chemical-trading"
      ],
      "purity": "50.0% ± 2.0% Solid Content (High Cationic Charge Density)",
      "standard": "Enterprise Export Standard (CW-08 / BWD-01 Grade)",
      "originPorts": [
        "Shanghai Port",
        "Qingdao Port",
        "Nanjing Port"
      ],
      "originProvinces": "Jiangsu (Yixing) / Shandong, China",
      "packaging": "30kg / 250kg HDPE Drums or 1,250kg IBC Totes",
      "fclLoadMt": 22.5,
      "fclLoadDisplay": "20.0 MT (80 × 250kg Drums) / 22.5 MT (18 × 1250kg IBCs per 20ft FCL)",
      "unitWeightKg": 250,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Classified under HS Code 3909.39.00 or 3809.91.00; Non-DG liquid polymer.",
      "complianceBadges": [
        ">95% Color Removal",
        "50–70% COD Reduction",
        "Reactive & Disperse Effluent"
      ],
      "shortSummary": "High-cationic quaternary ammonium dicyandiamide polymer engineered specifically to break chromophores and precipitate water-soluble reactive, acid, and disperse dyes in Bangladesh textile ETPs.",
      "bdMarketInsight": "Combined with PAC and Anionic PAM in a 3-stage dosing train, this decolorizing agent enables Bangladesh dyeing mills to achieve crystal-clear ETP discharge (<150 Pt-Co color units) at minimal dosage (30–100 ppm).",
      "applications": [
        "95%+ color removal from high-colority cotton reactive, indigo, acid, and disperse dye house wastewater",
        "Simultaneous 50%–70% COD reduction when dosed alongside Poly Aluminium Chloride (PAC)",
        "Pulp & paper effluent decolorization and printing ink wastewater treatment"
      ],
      "coaSpecs": [
        {
          "parameter": "Solid Content",
          "spec": "≥ 50.0% ± 2.0%",
          "typical": "51.2%",
          "method": "GB/T 1725"
        },
        {
          "parameter": "Viscosity (25°C)",
          "spec": "50 – 300 mPa·s",
          "typical": "145 mPa·s",
          "method": "Brookfield Viscometer"
        },
        {
          "parameter": "pH Value (30% Solution)",
          "spec": "3.0 – 5.0",
          "typical": "4.1",
          "method": "pH Meter"
        },
        {
          "parameter": "Specific Gravity (20°C)",
          "spec": "1.20 – 1.30 g/cm³",
          "typical": "1.24 g/cm³",
          "method": "Hydrometer"
        }
      ]
    },
    {
      "slug": "pam-polyacrylamide-anionic-cationic",
      "sku": "HS-PAM-90",
      "name": "PAM (Polyacrylamide — Anionic APAM & Cationic CPAM Flocculant)",
      "chemicalName": "Poly(2-propenamide) High-Molecular Weight Polyelectrolyte",
      "synonyms": [
        "Anionic Polyacrylamide APAM",
        "Cationic Polyacrylamide CPAM",
        "ETP Flocculant Polymer",
        "Polyelectrolyte"
      ],
      "formula": "(C3H5NO)n",
      "formulaHtml": "(C<sub>3</sub>H<sub>5</sub>NO)<sub>n</sub>",
      "cas": "9003-05-8",
      "ecNumber": "Polymer",
      "hsCode": "3906.90.00",
      "category": "etp-water-treatment",
      "categoryLabel": "ETP & Water Treatment Chemicals",
      "industries": [
        "etp-wtp",
        "textile-dyeing",
        "denim-washing",
        "leather-tannery",
        "chemical-trading"
      ],
      "purity": "Solid Content ≥ 89.0% (APAM MW: 12–22 Million Da | CPAM Ionicity: 20%–60%)",
      "standard": "GB/T 17514-2017 / GB/T 31246-2014",
      "originPorts": [
        "Qingdao Port",
        "Shanghai Port"
      ],
      "originProvinces": "Shandong / Henan / Jiangsu, China",
      "packaging": "25kg Multi-Wall Kraft Paper or PP Bags with Moisture-Proof PE Liner",
      "fclLoadMt": 20,
      "fclLoadDisplay": "20.0 – 22.0 MT (800–880 × 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Non-DG cargo under Bangladesh Customs HS Code 3906.90.00; low free acrylamide monomer (<0.05%).",
      "complianceBadges": [
        "MW up to 22 Million Da",
        "Rapid Clarifier Settling",
        "Sludge Dewatering Grade"
      ],
      "shortSummary": "Ultra-high molecular weight Anionic PAM (12–22M Da for rapid ETP clarifier floc settling) and Cationic PAM (20%–60% ionicity for screw-press and belt-press sludge dewatering).",
      "bdMarketInsight": "Used at just 1–5 ppm in every Bangladesh ETP secondary clarifier (APAM) to bridge PAC micro-flocs into fast-settling macro-flocs, and in sludge dewatering presses (CPAM).",
      "applications": [
        "Anionic PAM (APAM): Coagulation-flocculation aid in primary/secondary ETP sedimentation clarifiers",
        "Cationic PAM (CPAM): Conditioning biological and physico-chemical ETP sludge for filter/screw press dewatering",
        "Paper retention and drainage aid, ceramic wastewater settling, and sugar juice clarification"
      ],
      "coaSpecs": [
        {
          "parameter": "Solid Content",
          "spec": "≥ 89.0% – 90.0%",
          "typical": "90.4%",
          "method": "GB/T 17514-2017"
        },
        {
          "parameter": "Molecular Weight (Anionic APAM)",
          "spec": "12.0 – 22.0 Million Daltons",
          "typical": "18.0 Million Da",
          "method": "Intrinsic Viscosity"
        },
        {
          "parameter": "Cationic Degree (Cationic CPAM)",
          "spec": "20% – 60% (Tailored to Sludge)",
          "typical": "40% Ionicity",
          "method": "Colloid Titration"
        },
        {
          "parameter": "Dissolution Time (Distilled Water)",
          "spec": "≤ 45 – 60 Minutes",
          "typical": "40 Minutes",
          "method": "GB/T 17514-2017"
        },
        {
          "parameter": "Free Acrylamide Monomer",
          "spec": "≤ 0.05%",
          "typical": "0.018%",
          "method": "HPLC"
        }
      ]
    },
    {
      "slug": "ferrous-sulphate-heptahydrate-98",
      "sku": "HS-FESO4-98",
      "name": "Ferrous Sulphate Heptahydrate 98% (ETP & Industrial Grade)",
      "chemicalName": "Iron(II) Sulphate Heptahydrate",
      "synonyms": [
        "Copperas",
        "Green Vitriol",
        "Ferrous Sulfate",
        "Fenton Catalyst"
      ],
      "formula": "FeSO4·7H2O",
      "formulaHtml": "FeSO<sub>4</sub>·7H<sub>2</sub>O",
      "cas": "7782-63-0",
      "ecNumber": "231-753-5",
      "hsCode": "2833.29.00",
      "category": "etp-water-treatment",
      "categoryLabel": "ETP & Water Treatment Chemicals",
      "industries": [
        "etp-wtp",
        "textile-dyeing",
        "denim-washing",
        "chemical-trading"
      ],
      "purity": "98.0% Min (Fe2+ ≥ 19.7%, Dry Centrifuge Refined)",
      "standard": "HG/T 2935-2006",
      "originPorts": [
        "Qingdao Port",
        "Fangchenggang Port",
        "Nanjing Port"
      ],
      "originProvinces": "Shandong / Guangxi / Sichuan, China",
      "packaging": "25kg or 50kg PP Woven Bags with PE Liner",
      "fclLoadMt": 27,
      "fclLoadDisplay": "27.0 MT (1,080 × 25kg or 540 × 50kg Bags per 20ft FCL)",
      "unitWeightKg": 50,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Non-DG heavy container cargo (27 MT/FCL) under Bangladesh Customs HS Code 2833.29.00.",
      "complianceBadges": [
        "Centrifuge Dried Free-Flowing",
        "Fe2+ ≥ 19.7%",
        "Lowest-Cost ETP Coagulant"
      ],
      "shortSummary": "Dry, free-flowing Ferrous Sulphate Heptahydrate 98% (Fe2+ ≥ 19.7%) for cost-effective physico-chemical ETP coagulation, sulfur/reactive dye precipitation, and Fenton oxidation.",
      "bdMarketInsight": "The most economical primary coagulant and reducing agent used in high-volume Bangladesh dyeing and denim washing ETPs (dosed with lime/caustic at pH 8.5–9.5 or with H2O2 in Fenton towers).",
      "applications": [
        "Primary coagulation and reductive decolorization of reactive, sulfur, and vat dye effluent in textile ETPs",
        "Catalyst in Fenton reagent (Fe2+ + H2O2) advanced oxidation for refractory COD destruction",
        "Phosphate removal, cement chromate reduction, and agricultural micronutrient fertilizer"
      ],
      "coaSpecs": [
        {
          "parameter": "Ferrous Sulphate (FeSO4·7H2O)",
          "spec": "≥ 98.0%",
          "typical": "98.5%",
          "method": "HG/T 2935-2006"
        },
        {
          "parameter": "Ferrous Iron (Fe2+) Content",
          "spec": "≥ 19.7%",
          "typical": "20.0%",
          "method": "HG/T 2935-2006"
        },
        {
          "parameter": "Free Acid (as H2SO4)",
          "spec": "≤ 0.50%",
          "typical": "0.22%",
          "method": "HG/T 2935-2006"
        },
        {
          "parameter": "Water Insoluble Matter",
          "spec": "≤ 0.10%",
          "typical": "0.04%",
          "method": "HG/T 2935-2006"
        }
      ]
    },
    {
      "slug": "calcium-hypochlorite-70-bleaching-powder",
      "sku": "HS-CAHYPO-70",
      "name": "Calcium Hypochlorite 65% / 70% (Sodium Process Granular)",
      "chemicalName": "Calcium Hypochlorite Granular (High-Test Hypochlorite / HTH)",
      "synonyms": [
        "Bleaching Powder 70%",
        "HTH Granular",
        "Chlorine Granules",
        "Denim Chlorine Bleach"
      ],
      "formula": "Ca(ClO)2",
      "formulaHtml": "Ca(ClO)<sub>2</sub>",
      "cas": "7778-54-3",
      "ecNumber": "231-908-7",
      "hsCode": "2828.10.00",
      "category": "etp-water-treatment",
      "categoryLabel": "ETP & Water Treatment Chemicals",
      "industries": [
        "denim-washing",
        "etp-wtp",
        "chemical-trading",
        "textile-dyeing"
      ],
      "purity": "65.0% Min & 70.0% Min Effective Chlorine (Low Insolubles Sodium Process)",
      "standard": "GB/T 10666-2019",
      "originPorts": [
        "Wuhan / Shanghai Port",
        "Qingdao Port"
      ],
      "originProvinces": "Hubei / Shandong / Henan, China",
      "packaging": "40kg / 45kg / 50kg UN-Approved Plastic Drums",
      "fclLoadMt": 21.6,
      "fclLoadDisplay": "21.6 MT (480 × 45kg Drums per 20ft DG FCL)",
      "unitWeightKg": 45,
      "imoClass": "IMO Class 5.1 (Oxidizing Substance), UN 2880 / UN 1748",
      "dgStatus": "DG Class 5.1",
      "regulatoryNote": "Classified under Bangladesh Customs HS Code 2828.10.00; shipped in UN-certified 45kg plastic drums with DG manifest.",
      "complianceBadges": [
        "70% Effective Chlorine",
        "Sodium Process Low-Residue",
        "UN Approved Drums"
      ],
      "shortSummary": "Sodium-process granular Calcium Hypochlorite (65%/70% available chlorine) with low water insolubles (<2%) for denim garment chlorine washing, WTP disinfection, and ETP oxidation.",
      "bdMarketInsight": "Heavily consumed by Bangladesh denim washing plants for vintage bleach-down effects and by industrial water treatment systems for bacterial/algae disinfection.",
      "applications": [
        "Controlled chlorine bleach-down and vintage fade washing of indigo denim jeans",
        "Potable water disinfection, cooling tower biocide treatment, and ETP final effluent chlorination",
        "Sanitization of food/beverage processing surfaces and hospital/institutional hygiene"
      ],
      "coaSpecs": [
        {
          "parameter": "Effective Chlorine Content",
          "spec": "≥ 65.0% / ≥ 70.0%",
          "typical": "70.8%",
          "method": "GB/T 10666-2019"
        },
        {
          "parameter": "Moisture Content",
          "spec": "4.0% – 10.0%",
          "typical": "6.5%",
          "method": "GB/T 10666-2019"
        },
        {
          "parameter": "Granular Size (14–50 Mesh)",
          "spec": "≥ 90.0%",
          "typical": "93.5%",
          "method": "GB/T 10666-2019"
        },
        {
          "parameter": "Water Insoluble Matter (Sodium Process)",
          "spec": "≤ 2.5%",
          "typical": "1.4%",
          "method": "GB/T 10666-2019"
        }
      ]
    },
    {
      "slug": "sodium-formate-96-leather-textile",
      "sku": "HS-HCOONA-96",
      "name": "Sodium Formate 95%–97% (Leather Tanning & Dyeing Buffer Grade)",
      "chemicalName": "Sodium Methanoate",
      "synonyms": [
        "Sodium Formate",
        "Formic Acid Sodium Salt",
        "Chrome Tanning Masking Agent"
      ],
      "formula": "HCOONa",
      "formulaHtml": "HCOONa",
      "cas": "141-53-7",
      "ecNumber": "205-488-0",
      "hsCode": "2915.12.00",
      "category": "organic-acids-chelates",
      "categoryLabel": "Organic Acids, Chelates & Phosphates",
      "industries": [
        "leather-tannery",
        "textile-dyeing",
        "chemical-trading"
      ],
      "purity": "95.0% Min & 97.0% Min (White Crystalline Powder)",
      "standard": "SH/T 1628.2 / Enterprise Export Standard",
      "originPorts": [
        "Qingdao Port",
        "Tianjin Port"
      ],
      "originProvinces": "Shandong / Hebei, China",
      "packaging": "25kg PP Woven Bags with PE Inner Liner (or 1,000kg Jumbo Bags)",
      "fclLoadMt": 25,
      "fclLoadDisplay": "25.0 – 27.0 MT (1,000–1,080 × 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Non-DG cargo under Bangladesh Customs HS Code 2915.12.00; primary masking/neutralizing salt for Savar tanneries.",
      "complianceBadges": [
        "96%+ High Purity",
        "Savar Tannery Staple",
        "Non-DG Heavy Load"
      ],
      "shortSummary": "High-purity 95%–97% crystalline Sodium Formate used as a camouflage acid/masking agent in chrome leather tanning and as a pH buffer in textile dyeing and printing.",
      "bdMarketInsight": "Essential masking salt in the Savar BSCIC Leather Industrial Estate to accelerate chrome penetration into hides and achieve uniform wet-blue shrinkage temperature (>100°C).",
      "applications": [
        "Camouflage/masking agent and neutralizing salt in chrome tanning processes at Savar tanneries",
        "Buffering agent for strong mineral and organic acids in textile dyeing and printing baths",
        "Reducing agent for precious metals and eco-friendly de-icing/drilling fluid additive"
      ],
      "coaSpecs": [
        {
          "parameter": "Sodium Formate (HCOONa) Content",
          "spec": "≥ 95.0% / ≥ 97.0%",
          "typical": "97.4%",
          "method": "Titration"
        },
        {
          "parameter": "Moisture (Water Content)",
          "spec": "≤ 0.50%",
          "typical": "0.21%",
          "method": "GB/T 6284"
        },
        {
          "parameter": "Sodium Hydroxide / Carbonate",
          "spec": "≤ 0.50%",
          "typical": "0.18%",
          "method": "Titration"
        },
        {
          "parameter": "Sodium Chloride (NaCl)",
          "spec": "≤ 0.30%",
          "typical": "0.11%",
          "method": "Argentometric"
        }
      ]
    },
    {
      "slug": "sles-70-labsa-96-surfactants",
      "sku": "HS-SURF-SLES-LABSA",
      "name": "SLES 70% (Sodium Lauryl Ether Sulfate) & LABSA 96%",
      "chemicalName": "Sodium Laureth Sulfate (SLES 70%) & Linear Alkyl Benzene Sulfonic Acid (LABSA 96%)",
      "synonyms": [
        "SLES 70% Paste",
        "AES 70%",
        "LABSA 96%",
        "Soft Acid Slurry",
        "Anionic Surfactant Base"
      ],
      "formula": "RO(CH2CH2O)nSO3Na / R-C6H4-SO3H",
      "formulaHtml": "RO(CH<sub>2</sub>CH<sub>2</sub>O)<sub>n</sub>SO<sub>3</sub>Na",
      "cas": "68585-34-2",
      "ecNumber": "500-223-8",
      "hsCode": "3402.31.00",
      "category": "surfactants-pigments",
      "categoryLabel": "Surfactants, Pigments & Detergent Raw Materials",
      "industries": [
        "detergent-glass-ceramics",
        "textile-dyeing",
        "chemical-trading"
      ],
      "purity": "SLES: 70.0% ± 2.0% Active | LABSA: 96.0% Min Active",
      "standard": "GB/T 13529-2022 (SLES) / GB/T 8447-2008 (LABSA)",
      "originPorts": [
        "Shanghai Port",
        "Ningbo Port",
        "Nanjing Port",
        "Qingdao Port"
      ],
      "originProvinces": "Zhejiang (Zanyu) / Jiangsu / Shandong, China",
      "packaging": "SLES: 170kg/220kg Open-Top Drums | LABSA: 215kg HDPE Drums or 1,050kg IBCs",
      "fclLoadMt": 19.38,
      "fclLoadDisplay": "SLES: 19.38 MT (114 × 170kg Drums) | LABSA: 17.2–21.0 MT per 20ft FCL",
      "unitWeightKg": 170,
      "imoClass": "SLES: Non-DG | LABSA: IMO Class 8 (Corrosive), UN 2586",
      "dgStatus": "Non-DG / Class 8",
      "regulatoryNote": "Both SLES 70% (CAS 68585-34-2) and LABSA 96% (CAS 27176-87-0) classify under BD Customs HS 3402.31.00 / 3402.39.00.",
      "complianceBadges": [
        "Low 1,4-Dioxane (<30 ppm)",
        "Zanyu / Tier-1 Origin",
        "Klett Color ≤ 30"
      ],
      "shortSummary": "Natural palm-kernel derived SLES 70% (low 1,4-dioxane ≤30 ppm) and SO3-sulfonated LABSA 96% for Bangladesh liquid/powder detergent manufacturers and textile wetting/scouring formulators.",
      "bdMarketInsight": "Core surfactant raw materials imported year-round by Bangladeshi FMCG home-care brands, detergent factories, and textile auxiliary formulators.",
      "applications": [
        "SLES 70%: Primary foaming and cleansing surfactant for liquid dishwash, laundry liquid, handwash, shampoo, and textile scouring agents",
        "LABSA 96%: Neutralized with Caustic Soda or Soda Ash to produce LAS-Na for laundry detergent powders, detergent bars, and industrial cleaners"
      ],
      "coaSpecs": [
        {
          "parameter": "SLES Active Matter Content",
          "spec": "70.0% ± 2.0%",
          "typical": "70.4%",
          "method": "GB/T 13529"
        },
        {
          "parameter": "SLES 1,4-Dioxane Content",
          "spec": "≤ 30 ppm (or ≤ 50 ppm)",
          "typical": "18 ppm",
          "method": "GC-MS"
        },
        {
          "parameter": "LABSA Active Matter Content",
          "spec": "≥ 96.0%",
          "typical": "96.5%",
          "method": "GB/T 8447"
        },
        {
          "parameter": "LABSA Free Sulfuric Acid",
          "spec": "≤ 1.5%",
          "typical": "0.95%",
          "method": "GB/T 8447"
        },
        {
          "parameter": "Color (Klett / Hazen)",
          "spec": "SLES: ≤ 15 Hazen | LABSA: ≤ 35 Klett",
          "typical": "8 Hazen / 22 Klett",
          "method": "Spectrophotometer"
        }
      ]
    },
    {
      "slug": "titanium-dioxide-rutile-anatase",
      "sku": "HS-TIO2-R996",
      "name": "Titanium Dioxide (TiO2) Rutile (R-996 / BLR-699) & Anatase (A-101)",
      "chemicalName": "Titanium(IV) Oxide White Pigment",
      "synonyms": [
        "TiO2 Rutile",
        "TiO2 Anatase",
        "Pigment White 6 (PW6)",
        "Lomon Billions / CNNC Grade"
      ],
      "formula": "TiO2",
      "formulaHtml": "TiO<sub>2</sub>",
      "cas": "13463-67-7",
      "ecNumber": "236-675-5",
      "hsCode": "3206.11.00",
      "category": "surfactants-pigments",
      "categoryLabel": "Surfactants, Pigments & Detergent Raw Materials",
      "industries": [
        "textile-dyeing",
        "detergent-glass-ceramics",
        "chemical-trading"
      ],
      "purity": "Rutile (Zr/Al Surface Treated ≥ 94%–98%) & Anatase (≥ 98.5%)",
      "standard": "ISO 591-1:2000 (Type R2 & Type A1)",
      "originPorts": [
        "Qingdao Port",
        "Shanghai Port",
        "Chongqing / Fangchenggang"
      ],
      "originProvinces": "Sichuan / Henan / Shandong / Anhui, China",
      "packaging": "25kg Multi-Wall Valve Paper Bags (Palletized & Stretch-Wrapped)",
      "fclLoadMt": 25,
      "fclLoadDisplay": "22.0 – 25.0 MT (Palletized 25kg Bags per 20ft FCL)",
      "unitWeightKg": 25,
      "imoClass": "Non-Hazardous / Non-DG Cargo",
      "dgStatus": "Non-DG",
      "regulatoryNote": "Surface-treated Rutile TiO2 (≥80% TiO2) imports under HS Code 3206.11.00; untreated Anatase under HS Code 2823.00.00.",
      "complianceBadges": [
        "High Opacity PW6",
        "ZrO2/Al2O3 Coated Rutile",
        "Textile White Printing Paste"
      ],
      "shortSummary": "High-opacity Zirconia/Alumina coated Rutile TiO2 (R-996, BLR-699, R-902 equivalents) and high-whiteness Anatase TiO2 (A-101) for textile white pigment printing paste, paints, PVC, masterbatch, and ceramics.",
      "bdMarketInsight": "Heavily imported by Bangladesh garment screen-printing paste manufacturers (white rubber/khadi paste), architectural paint factories, uPVC pipe plants, and ceramic frit producers.",
      "applications": [
        "High-coverage White Rubber Paste (Khadi) and discharge printing paste for dark cotton T-shirts and hoodies",
        "Architectural interior/exterior emulsion paints, industrial coatings, and printing inks",
        "Polyolefin white masterbatch, uPVC pipes/profiles, paper opacity, and ceramic glazes"
      ],
      "coaSpecs": [
        {
          "parameter": "TiO2 Content",
          "spec": "Rutile: ≥ 94.0% | Anatase: ≥ 98.5%",
          "typical": "95.2% / 98.8%",
          "method": "ISO 591-1"
        },
        {
          "parameter": "Rutile Conversion Ratio",
          "spec": "≥ 98.0% (Rutile Grade)",
          "typical": "98.7%",
          "method": "XRD"
        },
        {
          "parameter": "Lightness (CIE L*)",
          "spec": "≥ 97.5",
          "typical": "98.1",
          "method": "CIELAB"
        },
        {
          "parameter": "Oil Absorption (g/100g)",
          "spec": "≤ 19.0 – 21.0",
          "typical": "18.2",
          "method": "ISO 787-5"
        },
        {
          "parameter": "Residue on 45 μm Sieve",
          "spec": "≤ 0.02%",
          "typical": "0.006%",
          "method": "ISO 787-7"
        }
      ]
    }
  ]
}