Polyphosphoric Acid 83-85% P2O5 from China
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 — China → United States
35%
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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