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Sodium Metaantimonate
Versatile Antimony-Based Additive for Glass, Ceramics, and Catalysis
Sodium Meta-Antimonate is a high-purity, white crystalline powder used primarily in glass clarification, ceramic glaze opacification, and industrial catalysis. It offers high thermal and chemical stability, and excellent dispersion in molten glass and enamel systems.
Product Overview
Sodium Meta-Antimonate (NaSbO₃·xH₂O) is an inorganic antimony compound widely used as a clarifying and whitening agent in glass and ceramic production. It effectively removes microbubbles and color impurities during high-temperature melting processes.
With its stable oxidation state and high Sb content, Sodium Meta-Antimonate is also utilized in catalytic applications and specialty flame-retardant systems.
Key Features
High Antimony Content enables strong clarification and whiteness effects.
Excellent Thermal Stability up to 600°C.
Low Impurity Level suitable for precision glass and ceramic applications.
Broad Compatibility with silicates, borosilicates, and enamels.
Environmentally Safer alternative to lead-based whiteners.
Applications
Solar & Optical Glass
Functions as a clarifying agent to remove gas bubbles and enhance light transmittance.
Ceramics & Enamels
Acts as a white opacifier, creating uniform brightness and surface finish in porcelain and glaze.
Glass Wool and Fiberglass
Supports glass fiber clarity and stability in insulation applications.
Catalysis
Used in heterogeneous catalysts due to stable antimony oxidation state.
Solar & Optical Glass
Functions as a clarifying agent to remove gas bubbles and enhance light transmittance.
Ceramics & Enamels
Acts as a white opacifier, creating uniform brightness and surface finish in porcelain and glaze.
Glass Wool and Fiberglass
Supports glass fiber clarity and stability in insulation applications.
Catalysis
Used in heterogeneous catalysts due to stable antimony oxidation state.
Parameter indicators
| Item | Typical Value |
|---|---|
| Product Name | Sodium Meta-Antimonate |
| Molecular Formula | NaSbO₃·xH₂O |
| CAS Number | 12312-89-1 |
| Appearance | White fine crystalline powder |
| Antimony Content (Sb₂O₃) | ≥ 98.5% |
| Particle Size (D50) | 10–30 μm |
| Moisture Content | ≤ 1.0% |
| Solubility | Insoluble in water |
| pH (1% suspension) | 7.0 – 8.0 |
Packaging specifications
Packaging Options:
25 kg PE-lined kraft bags
500 kg and 1000 kg jumbo bags
Storage:
Store in dry conditions. Keep sealed after use to avoid moisture pickup.
FAQs for Sodium Metaantimonate
1. Is Sodium Meta-Antimonate the same as Sodium Pyroantimonate?
No, they are structurally different. Meta-antimonate has a different crystalline structure and solubility.
2. Can it be used in glass fiber production?
Yes. It is compatible with most glass fiber formulations.
3. What purity grades are available?
Standard grade is ≥98.5% Sb₂O₃. Higher purity available upon request.
4. Is this product hazardous?
It is classified as non-hazardous under international transport standards.
5. Do you offer samples?
Yes. Free 100–500g samples are available for qualified industrial users.
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