Cuprous Iodide Powder from China
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 — China → United States
25%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
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