Sodium silicate sodium silicate is colorless crystals, melting point 1291 k (1088 ℃), a rare, hydrolysis of sodium silicate solution for alkaline (a little stronger than soda ash), is a weak acid salt so meet hydrochloric acid, sulfuric acid, nitric acid, carbon dioxide can be separated, silicate preservation should be close to prevent carbon dioxide into, and rubber plug should be used to prevent sticking to the ground glass stopper.

Industry commonly used soda and quartz eutectic Na2CO3+SiO2→Na2SiO3+CO2↑, products often contain ferric salt and light blue green, used as inorganic bonding agent (can be mixed with talc powder and other common), soap filler, the preparation of acid-resistant concrete, can be used to do the exterior wall coating after pigment, Poured into the ancient building foundation soil to strengthen the soil to prevent collapse.

Sodium metasilicate is generally bubble alkali and caustic soda made by hydrothermal reaction of low molecular crystals, commodities have water, five and nine hydrate, in which nine hydrate exists, as long as China's market in the 1980 s is an urgent need to sodium metasilicate and hasty development emergency product technology content is low, because of its melting point as long as the 42 ℃, when the storage is simple into liquid or cream, Is gradually phased out, but because some user habits and some categories are not very concerned about crystal water, nine water partial sodium silicate or a certain market.