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Product Details:
| Grade | Pentahydrate |
| Form | Powder |
| Purity | 99% |
| Na₂O Content | 28–30% |
| SiO₂ Content | 26–28% |
Sodium metasilicate pentahydrate (Na₂SiO₃·5H₂O) is a colorless, hygroscopic crystalline solid used in detergents, cements, coatings, and chemical synthesis.Chemical PropertiesSodium metasilicate pentahydrate is an ionic compound consisting of sodium cations (Na⁺) and metasilicate anions. Its chemical formula is Na₂SiO₃·5H₂O, and it is also formulated as Na₂SiO₂(OH)₂·4H₂O in some references. It is highly soluble in water, forming an alkaline solution, but insoluble in alcohols. The compound is hygroscopic and deliquescent, meaning it readily absorbs moisture from the air. Its CAS number is 10213-79-3.