Water Treatment Phosphoric Acid 81% from Canada
81% phosphoric acid for corrosion control and scale prevention in cooling water systems. Classified under HTS 2809.20.00 as pure polyphosphoric acid for industrial water treatment.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include EPA registration if claiming specific water treatment formulations
• Document pH adjustment capabilities for system compatibility