Potassium Persulfate Crystals from Mexico
Potassium persulfate (K2S2O8) is a white crystalline powder used as an oxidizing agent in chemical synthesis and polymerization processes. It falls under HTS 2833.40.60.10 as a peroxosulfate (persulfate) of potassium, specifically classified as 'other' peroxosulfates of potassium. This chemically defined inorganic compound meets Chapter 28 criteria for peroxosulfates.
Duty Rate — Mexico → United States
13.1%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify purity certificate to confirm it's chemically defined per Chapter 28 Note 1; ensure SDS includes CAS 7727-21-1
• Avoid misclassification as ammonium persulfate; check for stabilizers that might shift to 2831