Anhydrous Copper Sulfate Powder from Japan
White powder form of CuSO4 without water of hydration, used in catalysts and analytical chemistry. Falls under HTS 2833.25.00.00 as other sulfates of copper, distinct from hydrated forms but same chemical classification. Pure inorganic compound per Chapter 28 definitions.
Duty Rate — Japan → United States
1.4%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include spectral analysis confirming anhydrous state and >99% purity to distinguish from pentahydrate
• Declare exact water content (<1%) on commercial invoice to prevent reclassification as hydrate
• Check for TSCA registration if destined for chemical manufacturing; avoid bulk shipments without proper segregation