Benzotriazole from Canada
Benzotriazole prevents corrosion of processing equipment and acts as a silver image stabilizer in photographic films. This triazole derivative chelates metal ions in developer solutions. Classified as aromatic photographic chemical HTS 2934.99.20.00.
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
• Provide chelation efficiency data for metal protection
• Low dosage documentation prevents bulk chemical classification
• Distinguish from automotive antifreeze additive applications