Anhydrous Disodium Tetraborate Powder from Mexico
Pure anhydrous disodium tetraborate (Na2B4O7), also known as refined borax in its dehydrated form, used in industrial glass manufacturing and as a flux. It falls under HTS 2840.11.00.00 as it is specifically the anhydrous variant of disodium tetraborate without water of crystallization. This chemically defined inorganic borate compound is refined for high-purity applications.
Duty Rate — Mexico → United States
10.3%
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 anhydrous state and refined borax classification per Chapter 28 notes
• Include Material Safety Data Sheets (MSDS) for borate compounds to comply with hazardous material regulations
• Avoid misclassification as hydrated borax (2840.19), which has different subheading and potential duty rates