Phosphorus Pentoxide from Mexico
Phosphorus pentoxide (P₄O₁₀), also called phosphoric anhydride, is a white powder used as a desiccant and dehydrating agent. It qualifies under HTS 2811.29.5000 as an other inorganic oxygen compound of the nonmetal phosphorus. Highly reactive with water to form phosphoric acid.
Duty Rate — Mexico → United States
13.7%
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
• Mandatory UN 1806 hazardous material declaration; use moisture-proof packaging
• COA required to confirm anhydrous form vs. phosphoric acid (2809)
• Check for dissolution prohibitions that trigger 2809 reclassification