mCPBA 77% with 23% Water Stabilizer from Canada
This stabilized formulation contains 77% m-chloroperoxybenzoic acid with 23% water as per chapter note (d), preventing explosive decomposition. Used in industrial epoxidation processes, it remains classified under HTS 2916.39.04.00 as the water dissolution is solely for safety/transport.
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
• Declare water content precisely; excess water (>23%) may reclassify as solution under 3824
• Maintain 5-10°C shipping temperature with data loggers for stability verification
• Label as 'peroxyacids, stabilized' per UN packaging instructions