Phosphorus Pentoxide Desiccant Grade from Mexico
High-purity phosphorus pentoxide in granular form, optimized for use as a desiccant in laboratory and industrial drying applications. It avidly absorbs moisture from solvents and gases, forming phosphoric acid traps. Classified under HTS 2809.10.00.00 as the pure diphosphorus pentaoxide compound per Chapter 28 definitions.
Duty Rate — Mexico → United States
10%
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
• Use DOT-approved containers for corrosive properties; declare as Class 8 hazardous material on commercial invoice
• Provide assay reports showing >98% P2O5 to distinguish from polyphosphoric acids in the same heading
• Avoid misdeclaration as fertilizer precursor, which could trigger agricultural inspections