Sodium silicate is also known as sodium meta-silicate; it is a flaked powdered and solid inorganic sodium salt. It is a highly water-soluble substance and gives an alkaline solution. But it is a non-toxic, non-flammable, and non-explosive compound.

Sodium silicate can be prepared experimentally by reacting silica, caustic soda, and hot water in a reactor; or by dissolving silica in molten sodium carbonate. Sodium silicate has a wide of applications on the industrial level. Detergents, paper making, water treatment, and building materials use sodium silicate.