Sodium metasilicate is an inorganic compound that is widely used in various industrial applications. It is a white, crystalline powder or granular solid with the chemical formula Na2SiO3. Sodium metasilicate is a highly alkaline substance and is known for its excellent cleaning, buffering, and water softening properties.
Sodium metasilicate is commonly used in detergent formulations, as it helps to remove stains, grease, and dirt from surfaces. It is also used in various industrial processes, such as metal cleaning, textile processing, ceramics, and construction materials.
Property | Specification |
---|---|
CAS Number | 6834-92-0 |
Molecular Formula | Na2SiO3 |
Appearance | White, crystalline powder or granules |
Sodium Metasilicate Pentahydrate (Na2SiO3·5H2O) | ≥99% |
Sodium Metasilicate Anhydrous (Na2SiO3) | ≥98% |
Loss on Ignition (Pentahydrate) | ≤34% |
Bulk Density (Pentahydrate) | 0.8-1.2 g/cm³ |
Solubility | Soluble in water |
pH (1% Solution) | 12-13 |