Sodium Metasilicate (Pentahydrate)
Product Overview:
CAS #: 10213-79-3
Sodium metasilicate pentahydrate is a hydrated alkaline silicate compound used across cleaning, construction, water treatment, and textile applications. It is commonly employed in detergent and cleaning formulations, providing grease-cutting and soil-suspension performance in industrial and institutional cleaning products. Additionally, it serves as a corrosion inhibitor in industrial water treatment systems, helping protect metal equipment from oxidative damage. Sodium metasilicate pentahydrate is also utilized as a bonding agent in construction materials requiring an alkaline silicate binder. Furthermore, it finds applications in textile processing operations such as scouring and desizing prior to dyeing.
Relevant identified uses:
Chemicals for various applications
For the production of: Fire retarding agent, Cosmetics, Laundry detergent, Building material, Ceramics, Binder
Uses advised against:
Do not use for squirting or spraying
Do not use for products which come into direct contact with the skin
Documentation:
Technical Information:
Na2O
28.70 – 30.00 %
SiO2
27.80 – 29.20 %
Fe
≤ 100 ppm
Water-insoluble
≤ 0.05 %
Bulk Density
0.80 – 0.97 g/cm3
Particle Size (16-30 mesh)
≥ 90 %
Whiteness
≥ 80 %
pH (1% solution)
12 – 13
Melting Point
72.2 oC
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