Peroxoboric Acid from China
Peroxoboric acid, in stabilized form, acts as a precursor for perborate salts in laboratory and fine chemical production. HTS 2840.30.0050 covers it as an 'other' peroxoborate per Chapter 28 acid provisions. It represents the parent acid structure with peroxy functionality.
Duty Rate — China → United States
38.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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 pH and stability data to confirm acid classification
• Ship under temperature-controlled conditions to maintain peroxo integrity
• Obtain end-user statements for research chemical exemptions