Sodium Metasilicate (Anhydrous)
Product Overview:
Identification of Substance: Silicic acid (H2SiO3), sodium salt (1:2)
Trade name:
Sodium Metasilicate Anhydrous – Granular
Sodium Metasilicate Anhydrous – Powder
CAS #: 6834-92-0
Anhydrous sodium metasilicate is a strong alkaline silicate compound used across cleaning, construction, water treatment, and textile applications. It is commonly employed in detergent and industrial cleaning formulations, where it provides strong grease-cutting power and helps suspend soil particles during washing. Additionally, it serves as a corrosion inhibitor in industrial water treatment systems, forming a protective film on metal surfaces to reduce oxidation. Sodium metasilicate is also utilized as a bonding and dispersing agent in construction materials, improving adhesion and workability. Furthermore, it finds applications in textile finishing as a processing aid that assists in scouring and desizing operations.
Relevant identified uses: Chemicals for various applications
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
50.0 – 52.0 %
SiO2
≥ 45.0 %
Fe
≤ 200 ppm
Cl
≤ 100 ppm
Water-insoluble
≤ 0.25 %
Bulk Density
1.05-1.35 g/cm3
Particle Size (18-60 mesh)
≥ 93.0 %
Whiteness
≥ 85.0 %
pH (1% solution)
12 – 13
Appearance
White, uniform, beads
Above information is based on the “Sodium Metasilicate Anhydrous” TDS
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