Description
Antimony (III) Oxide (Sb₂O₃, Antimony Trioxide)
Antimony (III) Oxide, commonly called Antimony Trioxide, chemical formula Sb₂O₃, CAS No.1309-64-4, white fine inorganic powder, the most widely used synergistic flame retardant in industrial manufacturing.
It works synergistically with halogen flame retardants to form dense fire barrier layer, suppress smoke release and prevent flame spread, with excellent whitening and covering performance:
- Plastic & PVC Masterbatch: Core flame retardant for wire cable, pipe, film and injection plastic parts;
- Fireproof Coatings & Paint: Boost fire resistance for intumescent steel structure coatings;
- Ceramic & Enamel: Opacifier to improve glaze whiteness and surface covering power;
- Rubber & Textile: Anti-flame auxiliary agent for fire retardant rubber and fabric.
Our antimony trioxide reaches ≥99.5% purity, super high whiteness, uniform micro particle size, low impurity, no agglomeration, easy dispersion in resin and glaze slurry.
Key Specifications
- Chemical Name: Antimony (III) Oxide / Antimony Trioxide
- Formula: Sb₂O₃
- CAS Number: 1309-64-4
- Purity: ≥99.5% Industrial Grade
- Appearance: Bright White Superfine Powder
- Core Features: High Flame Retardancy, High Whiteness, Good Dispersion, Low Smoke
- Main Applications: PVC Plastic Masterbatch, Fireproof Coatings, Ceramic Glaze, Flame Retardant Rubber, Cable Compounds
Our Advantages
- Strict smelting & grinding control, full set of COA, MSDS and test certificates supplied
- Large stable inventory, standard 25kg woven bag packaging, jumbo bag for bulk order
- Factory direct wholesale, competitive price for Asia & Africa chemical buyers
- Free test samples for flame retardancy and dispersion testing, fast delivery cycle
If you need long-term stable supplier of antimony trioxide for fire-resistant plastic and coating production, send inquiry to get latest quotation and technical datasheet.
