Antimony Trioxide (ATO), with the chemical formula Sb₂O₃, is a high-purity, white crystalline powder renowned for its effectiveness as a flame retardant synergist. It enhances the flame resistance of materials when used in combination with halogenated compounds. ATO is widely utilized across various industries, including plastics, textiles, electronics, and glass manufacturing, due to its superior flame-retardant properties and versatility.
Antimony Trioxide
Antimony(III) Oxide
Diantimony Trioxide
Sb₂O₃
| Property | Specification |
| Chemical Formula | Sb₂O₃ |
| CAS Number | 1309-64-4 |
| Purity | ≥ 99.5% |
| Appearance | White crystalline powder |
| Melting Point | ~656°C |
| Boiling Point | ~1425°C |
| Density | ~5.2 g/cm³ |
| Moisture Content | ≤ 0.05% |
| Average Particle Size | ~1.0 µm |
| Whiteness | ≥ 95% |
Enhanced Flame Retardancy: Acts synergistically with halogenated compounds to improve flame resistance.
High Purity: Ensures consistent performance across applications.
Versatility: Suitable for a wide range of industries and applications.
Plastics: PVC, PP, PE, PS, ABS, PU
Rubber and Textiles: Enhances flame resistance in various formulations.
Paints and Coatings: Used as a pigment and flame retardant.
Glass and Ceramics: Functions as a clarifying and opacifying agent.
Electronics: Applied in components like transistors and diodes.
Dosage varies based on application and desired flame retardancy. Typically, ATO is used at concentrations ranging from 2% to 10% by weight.
**perform trials before making final batch
1 kg
5 kg
25 kg
Store in a cool, dry, and well-ventilated area.
Keep containers tightly closed to prevent moisture absorption.
Avoid exposure to incompatible substances.
YouTube: Antimony Trioxide (ATO)
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