Perfluorooctane Sulfonamide Potassium Salt from Canada
The potassium salt form of perfluorooctane sulfonamide used in aqueous fluorosurfactant formulations. Classifies under HTS 2935.50.00.00 following the parent organic compound per Chapter note 4(C)(1).
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%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
• Specify counterion (K+) and assay content in COA to prevent salt misclassification
• Use HDPE containers with PFAS-compatible liners
• Include pH stability data (>12) for aqueous solutions