Polyphosphoric Acid 83-85% P2O5 from Japan
A superphosphoric acid containing 83-85% P2O5, used in the production of phosphate esters and as a catalyst in polymerization reactions. Classified under HTS 2809.20.00.40 due to its polyphosphoric composition exceeding standard orthophosphoric acid.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include detailed compositional analysis showing polyphosphate chains to distinguish from 2809.20.0010
• Comply with DOT/UN shipping requirements for corrosive liquids; use polyethylene-lined drums
• Check for phosphorus content restrictions under TSCA; register if new chemical use