Ammonium Hypophosphite from Mexico
Ammonium hypophosphite (NH4H2PO2) is used in chemical reduction processes and polymer stabilizers. Classified as a phosphinate under HTS 2835.10.00.00 since chapter notes include ammonium salts. It is a white crystalline solid with strong reducing properties.
Duty Rate — Mexico → United States
13.1%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include ammonium content certification; store below 60°C to prevent decomposition; segregate from oxidizers in shipping docs