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.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If barium sulfate
Barium sulfate has its own subheading 2833.27, distinct from other metal sulfates.
If mineral/chemical fertilizer in tablets or similar
Put-up fertilizers shift to Chapter 31 based on presentation and end-use.
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Import Tips & Compliance
• Include crystallization certificates to verify heptahydrate form versus anhydrous
• Comply with EPA regulations for pesticide imports if labeled for agricultural use
• Declare exact concentration to prevent blending with Chapter 38 preparations
Related Products 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.
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.