Manganese(III) Oxide Mn2o3 Sodium silicate is really an inorganic compound often called h2o glass, with the chemical formula Na2SiO3. It is a colorless, somewhat alkaline viscous liquid, weakly alkaline, soluble in water, and will manufacture silica gel, silica black, silica sol, silicate cement, textiles, fireproofing brokers, and so forth. Sod