Sodium Pyroantimonate
Sodium Pyroantimonate (Na₂H₂Sb₂O₇)
High-purity sodium pyroantimonate, stable product quality, low impurity content, it is an excellent glass clarifier and flame retardant synergist, widely used in high-grade glass products and plastic flame retardant systems.
Specification
| Item | Unit | Premium Grade | First Grade |
|---|---|---|---|
| Sb₂O₅ | % | ≥64.0 | ≥62.0 |
| Na₂O | % | 12-15 | 12-16 |
| As | % | ≤0.05 | ≤0.10 |
| Pb | % | ≤0.05 | ≤0.10 |
| Fe₂O₃ | % | ≤0.05 | ≤0.10 |
| Water insoluble | % | ≤0.5 | ≤1.0 |
Applications
- Glass Industry: Used as clarifier and decolorizer for high-grade glass, effectively eliminate bubbles in glass and improve glass transparency
- Flame Retardant Industry: Used as flame retardant and flame retardant synergist for plastics and textiles, improve flame retardant efficiency and reduce smoke generation
- Enamel & Ceramics: Used as opacifier for enamel and ceramics, improve glaze quality, increase gloss and covering power
- Paint Industry: Used as opaque coating for foundry paints
- Electronics Industry: Used in the production of some electronic ceramic materials and semiconductor materials
Physical & Chemical Properties
- CAS Number: 10061-03-3
- Appearance: White crystalline powder
- Chemical Formula: Na₂H₂Sb₂O₇
- Molecular Weight: 401.5
- Density: 3.75 g/cm³
- Solubility: Insoluble in ethanol, soluble in hot water
- Stability: Stable at room temperature, chemically inert