Sodium Silicate (Na2SiO3)-Granules introduce:
Sodium metasilicate is the chemical substance with formula Na2SiO3, which is the main component of commercial sodium silicate solutions. It is a colorless crystalline hygroscopic and deliquescent solid, soluble in water (giving an alkaline solution), but not in alcohols.
Molar mass:122.062 g·mol−1
Melting point:1,088 °C (1,990 °F; 1,361 K)
Solubility in water:22.2 g/100 ml (25 °C);160.6 g/100 ml (80 °C)
Solubility:insoluble in alcohol
Refractive index (nD):1.52
Sodium metasilicate is used as a starting material for zeolites and silica catalysts. It acts as an adhesive and binder, corrosion inhibitor, penetrating sealant, coagulant in waste water treatment, fixative for hand dyeing with reactive dye and detergent auxiliaries. It is also used in boiler compounds, cleaners, bleaches, aluminum paint strippers and washing carbonated drinking bottles. It finds application in cements, drilling fluids, fireproofing wood, refractories and automobiles. Further, it serves as a surfactant, emulsifier, wetting agent, suspending agent, dispersing agent and anti-corrosive agent in boiler water.
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