Boron Trioxide Glass-Grade Powder from Mexico
High-purity boron trioxide powder designed for borosilicate glass production, providing thermal resistance properties. It qualifies under HTS 2810.00.00.00 as an oxide of boron, pure B2O3 form. Used by manufacturers like Corning for labware and cookware.
Duty Rate — Mexico → United States
11.5%
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
• Supply FTIR or XRD spectra confirming B2O3 structure to customs for verification
• Avoid bulk packaging over 25kg to minimize dust hazards during inspection
• Confirm free of heavy metals to meet glass industry standards