Cuprous Iodide Powder from Japan
Cuprous iodide (CuI) is a white powder used as a catalyst in organic synthesis and in cloud seeding operations. It qualifies under HTS 2827.60.10.00 as an iodide of copper. Chemically defined and stable under normal conditions.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Confirm Cu(I) oxidation state via certificate; store in inert atmosphere to prevent oxidation
• Pitfall: confusing with cupric iodide (CuI2) which may classify differently