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Sulfates; alums; peroxosulfates (persulfates): > Other sulfates: > Other: > Other > Other
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2833.29.51.90
Sodium Lauryl Sulfate Powder
Sodium lauryl sulfate (SLS) is an anionic surfactant classified as a sulfate of sodium under HTS 2833.29.51.90 due to its chemical structure featuring a sulfate group bonded to a lauryl chain. It is widely used in shampoos, soaps, and detergents for its foaming and cleansing properties.
Zinc Sulfate Heptahydrate Crystals
Zinc sulfate heptahydrate (ZnSO4·7H2O) is a colorless crystalline sulfate salt used in fertilizers and animal feed supplements, classified under HTS 2833.29.51.90 as an 'other' sulfate. Its chemical definition as a metal sulfate places it distinctly in Chapter 28.
Manganese Sulfate Monohydrate Powder
Manganese sulfate monohydrate (MnSO4·H2O) is a pale pink powder used as a micronutrient in fertilizers and batteries, falling under HTS 2833.29.51.90 for other sulfates. It qualifies as a chemically defined inorganic metal sulfate per Chapter 28 notes.
Copper Sulfate Pentahydrate Crystals
Copper sulfate pentahydrate (CuSO4·5H2O), known as blue vitriol, is used in agriculture as a fungicide and in electroplating, classified in HTS 2833.29.51.90 as other sulfates. Its defined chemical structure as a copper salt confirms Chapter 28 placement.
Ferrous Sulfate Heptahydrate Granules
Ferrous sulfate heptahydrate (FeSO4·7H2O) granules serve as an iron supplement in water treatment and animal nutrition, under HTS 2833.29.51.90 for other sulfates. Excluded from Chapter 31 as a pure chemically defined compound.
Nickel Sulfate Hexahydrate Solution
Nickel sulfate hexahydrate (NiSO4·6H2O) in aqueous solution is used in electroplating and catalyst production, classified under HTS 2833.29.51.90 as other sulfates. Remains in Chapter 28 despite solution form if chemically defined.
Ammonium Persulfate Crystals
Ammonium persulfate ((NH4)2S2O8) is a white crystalline oxidizer used in polymerization and etching, under HTS 2833.29.51.90 as other peroxosulfates not elsewhere specified. Chapter notes confirm classification for ammonium peroxysalts.
Cobalt Sulfate Heptahydrate Powder
Cobalt sulfate heptahydrate (CoSO4·7H2O) red powder is essential for battery production and pigments, fitting HTS 2833.29.51.90 for other sulfates. Pure compound status per Chapter 28 excludes from mixtures.
Magnesium Sulfate Anhydrous Granules
Anhydrous magnesium sulfate (MgSO4) granules act as a desiccant (Epsom salt dried form) in labs and pharma, under HTS 2833.29.51.90. Distinguished from Chapter 25 natural minerals.
Sodium Persulfate Powder
Sodium persulfate (Na2S2O8) is a strong oxidizer for bleaching and etching, classified in HTS 2833.29.51.90 as other peroxosulfates. Chemically defined per Chapter Note 2 for inorganic peroxides.
Cadmium Sulfate Hydrate
Cadmium sulfate hydrate (CdSO4·xH2O) is used in electroplating and fluorescent screens, under HTS 2833.29.51.90 for toxic metal sulfates. Highly regulated due to cadmium toxicity.
Barium Sulfate Precipitated Powder
Precipitated barium sulfate (BaSO4) powder serves as a high-purity filler in paints and X-ray contrast, HTS 2833.29.51.90 despite common 2511 use for natural barite. Synthetic form qualifies as chemically defined.
Strontium Sulfate Powder
Strontium sulfate (SrSO4) powder is used in pyrotechnics and ceramics, classified under HTS 2833.29.51.90 as rare earth sulfates. Chemically pure form per Chapter definitions.
Potassium Persulfate Crystals
Potassium persulfate (K2S2O8) crystals initiate polymerization in adhesives and initiate bleaching, HTS 2833.29.51.90 for other persulfates. Strong oxidizer properties confirmed.
Lithium Sulfate Monohydrate
Lithium sulfate monohydrate (Li2SO4·H2O) is used in lithium battery electrolytes and pharmaceuticals, under HTS 2833.29.51.90 as other alkali sulfates. Critical mineral status applies.