High Purity Antimony Trioxide 99.99%
Ultra-high purity Sb2O3 crystals for optical glass and semiconductor applications. Falls under HTS 2825.80.00.00 as chemically defined antimony oxide meeting Chapter 28 purity standards.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in carbide form for electronics
Certain metal carbides used in electronics shift to 2849.
If doped with rare earths for luminophore use
Chapter Note excludes luminophores to 3206.
If already incorporated into optical glass
Finished glass products classified in Chapter 70.
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Import Tips & Compliance
• Include spectroscopic analysis confirming electronic grade purity
• Specify glass/clarity applications to distinguish from commodity grades
• Comply with Wassenaar Arrangement for high purity chemicals
Related Products under HTS 2825.80.00.00
Antimony Trioxide Powder
Antimony trioxide (Sb2O3) is a fine white powder primarily used as a flame retardant synergist in plastics and textiles. It falls under HTS 2825.80.00.00 as a chemically defined antimony oxide, meeting Chapter 28 criteria for inorganic metal oxides.
Antimony Pentoxide Colloidal Dispersion
Aqueous colloidal dispersion of antimony pentoxide (Sb2O5) used in catalyst production and flame retardant coatings. Classified under HTS 2825.80.00.00 as chemically defined antimony oxide despite liquid form.
Technical Grade Antimony Trioxide
Technical grade Sb2O3 with 99.5% purity for industrial flame retardancy in PVC and rubber compounds. HTS 2825.80.00.00 covers this primary antimony oxide used in high-volume polymer applications.
Antimony Tetroxide Fine Powder
Sb2O4 intermediate oxidation state oxide used in ceramics and specialty catalysts. HTS 2825.80.00.00 encompasses all antimony oxides including this less common tetroxide form.
Flame Retardant Grade Antimony Trioxide
Senarmontite mineral-derived Sb2O3 optimized for halogenated flame retardant systems in electronics housing. Principal classification under HTS 2825.80.00.00 as the defining antimony oxide.
Antimony Oxide Catalyst Precursor
High surface area Sb2O3 used as precursor for PET polymerization catalysts with germanium. HTS 2825.80.00.00 classification based on chemical definition as antimony oxide.