Zinc Sulfate Heptahydrate from Japan
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.
Duty Rate — Japan → United States
1.6%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Specify exact hydrate form on commercial invoice; heptahydrate vs monohydrate affects solubility but same HTS
• Comply with TSCA import certification for chemical substances entering US commerce