Boron Trioxide Glass-Grade Powder
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If melted into glass frit form
Glass in powder or flake form shifts to Chapter 70.
If as a derivative borate for flux
Other commercial borates used as fluxes are in 2840.
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Import Tips & Compliance
• 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
Related Products under HTS 2810.00.00.00
Anhydrous Boric Oxide Powder
Anhydrous boric oxide (B2O3) is a white, glassy powder used in the production of borosilicate glass and as a flux in metallurgy. It falls under HTS 2810.00.00.00 as an oxide of boron, chemically defined as a pure inorganic compound of boron and oxygen. This high-purity form is essential for optical glass manufacturing.
Boric Acid Crystals (H3BO3)
Boric acid is a weak, monobasic Lewis acid of boron available in white, odorless crystals or powder form, used as an antiseptic and in fire retardants. It is explicitly classified under HTS 2810.00.00.00 as one of the boric acids per the heading description. Technical grade is common for industrial applications like glass fiber production.
Technical Grade Boric Acid Flakes
Technical grade boric acid flakes are produced by dehydration of borax and used in ceramics, fertilizers, and as a pH buffer in pools. Classified under HTS 2810.00.00.00 as boric acid, meeting Chapter 28's chemically defined criteria. Purity typically 99.5% minimum for industrial use.
Orthoboric Acid USP Grade
USP-grade orthoboric acid meets pharmaceutical standards for use in eye washes and as a preservative. Classified in HTS 2810.00.00.00 as boric acid, chemically defined per Chapter notes. High purity (99.8%+) ensures compliance for medical applications.
Granular Boric Acid for Insecticide
Granular boric acid specifically sized for roach and ant baits, acting as a stomach poison. Falls under HTS 2810.00.00.00 as pure boric acid before formulation into pesticides. Industrial packaging for pest control distributors.
Boric Oxide Sintered Pellets
Sintered boric oxide pellets used in nuclear reactor control rods and high-temperature ceramics. Classified as boron oxide under HTS 2810.00.00.00, meeting purity standards for Chapter 28. Formed without altering chemical composition.