ANTIMONY TRIOXIDE
SB2O3ANTIMONY TRIOXIDE
Chemical formula: Sb₂O₃
EC 215-175-0
CAS 1309-64-4
Packaging: 25kg, 500kg, 1000kg
Chemical Analysis of Antimony Trioxide Sb₂O₃
| Parameter | Specification |
| Sb₂O₃ content, %(w/w) | >= 99.6 |
| Arsenic content As, %(w/w) | <= 0.08 |
| Lead content Pb, %(w/w) | <= 0.08 |
| Iron content Fe, %(w/w) | <= 0.002 |
| Residue on 325 mesh sieve, % | <= 0.05 |
| Average particle size, µ | 0.9 – 1.4 |
| Specific surface area, m²/g | 2.0 – 4.5 |
- What is Antimony Trioxide?
Antimony trioxide (Sb₂O₃) is an inorganic chemical compound widely used in various industries. It is a white powder with amphoteric properties, primarily used as a flame retardant in the production of plastics, rubber, and textiles. It is also utilized in the glass industry to improve glass clarity and in the production of enamels and pigments.
Due to its chemical properties, antimony trioxide plays a crucial role in catalytic processes and as a raw material in chemical synthesis. However, it can be toxic, so proper precautions, including working in ventilated spaces and using personal protective equipment, are essential when handling it.
Properties of Antimony Trioxide:
| Parameter | Value |
|---|---|
| Chemical formula | Sb₂O₃ |
| Molar mass | 291.52 g/mol |
| Appearance | White powder |
| Density | 5.2 g/cm³ (at room temperature) |
| Melting point | ~656°C |
| Boiling point | Decomposes before boiling |
| Solubility in water | 0.000017 g/100 ml (at 25°C) |
| Solubility in acids | Soluble in strong acids |
| Crystal structure | Cuboctahedral and monoclinic |
| Physical state | Solid (at room temperature) |
Applications of Antimony Trioxide (Sb₂O₃):
Antimony trioxide is a versatile chemical compound used in many industrial applications. Here are its main uses:
Flame retardants
- Sb₂O₃ is often used as a component in flame retardants for plastics, rubbers, and textiles.
- Works synergistically with halogens to create a protective barrier, reducing fire spread.
- Applied in cables, carpets, electronic devices, and furniture.
Glass and ceramics production
- Used to enhance the clarity of glass, especially in optical and decorative glass production.
- Added to enamels and ceramics for better gloss and color durability.
Pigments and dyes
- Antimony trioxide is a component of pigments used in paints, inks, and coatings to stabilize color.
Catalyst production
- Utilized in industrial processes as a catalyst, e.g., in polyester (PET) and other polymer production.
Electronics industry
- Used in the production of semiconductors and advanced electronic materials.
Other applications:
- In the synthesis of chemical compounds, such as other antimony salts.
- As a stabilizer in lead-acid batteries.
Synonyms of Antimony Trioxide (Sb₂O₃):
- Antimonite(III)
- Antimony(III) oxide
- Antimonium oxide
- Antimony sesquioxide
- Antimonia
- Antimony trioxide
- Oxygenated antimony
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