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Sulfates; alums; peroxosulfates (persulfates): > Other sulfates: > 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
Sodium Lauryl Sulfate
Sodium lauryl sulfate (SLS) is an anionic surfactant commonly used in shampoos, soaps, and detergents for its foaming properties. It is classified under HTS 2833.29.51 as a sulfate of an organic base, falling into the 'other sulfates' category of Chapter 28 for chemically defined inorganic compounds.
Ferrous Sulfate Heptahydrate
Ferrous sulfate heptahydrate, also known as green vitriol, is used as a fertilizer supplement, water treatment agent, and iron source in animal feed. It qualifies under HTS 2833.29.51 as an 'other' sulfate, specifically a metal sulfate not enumerated elsewhere in heading 2833.
Manganese Sulfate Monohydrate
Manganese sulfate monohydrate serves as a micronutrient in fertilizers, animal feeds, and agrochemicals. Classified in HTS 2833.29.51 as an other sulfate of a base metal, distinct from listed sulfates like copper or nickel.
Zinc Sulfate Heptahydrate
Zinc sulfate heptahydrate is applied in agriculture as a fungicide, fertilizer, and in water purification. It falls under HTS 2833.29.51 as an unlisted metal sulfate in the 'other sulfates' category.
Magnesium Sulfate Heptahydrate (Epsom Salt)
Pharmaceutical-grade magnesium sulfate heptahydrate, known as Epsom salt, is used for baths, laxatives, and medical applications. HTS 2833.29.51 covers it as an other sulfate, provided it's chemically pure and not a preparation.
Nickel Sulfate Hexahydrate
Nickel sulfate hexahydrate is essential for electroplating baths, catalysts, and battery production. Though nickel sulfates have specific provisions, high-purity forms not matching enumerated subheadings fall under HTS 2833.29.51 as other sulfates.
Cobalt Sulfate Heptahydrate
Cobalt sulfate heptahydrate is used in pigments, catalysts, and lithium-ion battery precursors. It is classified under HTS 2833.29.51 as an other sulfate not specifically provided for elsewhere.
Ammonium Persulfate
Ammonium persulfate acts as a bleaching agent, initiator in polymerization, and etchant in electronics. Though persulfates are peroxosulfates, unlisted forms fall under HTS 2833.29.51 as other sulfates/peroxysulfates.
Aluminum Potassium Sulfate (Potash Alum)
Aluminum potassium sulfate, or potash alum, is used in water purification, baking powder, and as an astringent. Technically a double salt, pure forms not meeting alum definitions classify under HTS 2833.29.51.
Copper Sulfate Pentahydrate
Copper sulfate pentahydrate (bluestone) is widely used as a fungicide, algaecide, and in electroplating. High-purity grades not under specific copper provisions fall in HTS 2833.29.51 as other sulfates.