Zinc Sulfate Crystals from Canada
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.
Duty Rate — Canada → 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
• For lab chemicals <1kg, use simplified entry; larger quantities need full commercial invoice
• Moisture-proof packaging prevents hydrate conversion during transit
• Avoid 'reagent' labeling that might trigger 3822 for kits