Calcium Bis(monoisopropyl phosphate) from Canada
This metal salt of a phosphoric ester functions as a lubricant additive and stabilizer. Classified under HTS 2919.90.50.50 per note 5(C)(1) for inorganic salts of organic phosphate compounds following the organic component's heading. Chapter notes specify salt classification follows acid-function compound.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Salt stoichiometry analysis prevents inorganic phosphate misclassification
• Anti-corrosion testing documentation for additive claims