Ammonium Difluoride from Mexico
Ammonium difluoride (NH4HF2 variant) used in beaker cleaning and synthetic fluoride production. HTS 2826.19.1000 classifies it as ammonium fluoride. Chemically defined simple fluoride salt.
Duty Rate — Mexico → United States
13.1%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Distinguish from bifluoride via molar ratio in COA
• Retail lab packs risk 3824 classification