Potassium Persulfate Granules from China
Potassium persulfate (K2S2O8) granules serve as an etchant in microelectronics and a bleaching agent in textiles. This peroxosulfate falls under HTS 2833.40.60 as 'other' within the persulfates subheading, meeting inorganic compound definitions of Chapter 28. It's distinguished from sodium or ammonium variants by potassium base.
Duty Rate — China → United States
40.6%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include CAS 7727-21-1 on labeling for customs verification; test for heavy metal contaminants per EPA rules; use child-resistant packaging if >98% concentration