Of zinc
Sulfates; alums; peroxosulfates (persulfates): > Other sulfates: > Other: > Of zinc
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 2833.29.45.00
Anhydrous Zinc Sulfate
Anhydrous zinc sulfate (ZnSO4) is the water-free form used in pharmaceuticals, electroplating, and as a catalyst precursor. It qualifies for HTS 2833.29.45.00 as a chemically pure sulfate of zinc per Chapter 28 notes. This fine white powder is highly reactive due to lack of hydration.
Zinc Sulfate Crystals
Large crystal form of zinc sulfate heptahydrate used in educational labs and small-scale industrial processes. Classified as other sulfates of zinc under HTS 2833.29.45.00 due to its chemical purity. Effloresces in dry air, forming characteristic white crystals.
Zinc Sulfate Monohydrate
Zinc sulfate monohydrate (ZnSO4·H2O) is a chemically defined inorganic salt of zinc used primarily as a fertilizer micronutrient and in animal feed supplements. It falls under HTS 2833.29.45.00 as a sulfate of zinc, distinct from other metal sulfates in the heading. This white crystalline powder provides essential zinc for plant growth and livestock nutrition.
Zinc Sulfate Heptahydrate
Zinc sulfate heptahydrate (ZnSO4·7H2O), commonly known as zinc vitriol, is a hydrated form of zinc sulfate used in water treatment, leather processing, and as a laboratory reagent. Classified under HTS 2833.29.45.00 as 'other sulfates of zinc' due to its chemical definition as a zinc salt. The colorless crystals dissolve readily for industrial applications.
Zinc Sulfate USP Grade
USP-grade zinc sulfate meets United States Pharmacopeia standards for medicinal use in supplements and topical ointments. As a purified sulfate of zinc, it is classified under HTS 2833.29.45.00 for import. This ensures compliance for human consumption applications.
Technical Grade Zinc Sulfate
Technical grade zinc sulfate is used in industrial applications like rayon production, pigments, and flame retardants. It is a cost-effective sulfate of zinc classified under HTS 2833.29.45.00 when chemically defined. Lower purity suits non-pharma manufacturing.
Zinc Sulfate for Animal Feed
Feed-grade zinc sulfate provides trace mineral supplementation in poultry and livestock nutrition. As a pure zinc sulfate compound, it imports under HTS 2833.29.45.00 before mixing into feeds. Meets AAFCO standards for mineral content.