Water glass is in the state of sodium silicate solution. It is mostly called water glass in the south, and soya alkaloid in the north. Sodium silicate is a colorless, slightly colored transparent or translucent viscous liquid in a system using water as a dispersant. The solid sodium silicate is a colorless, slightly colored transparent or translucent glass block. The forms are divided into three types: liquid, solid, and water-quenched. Such substances are theoretically called "colloids".

Ordinary sodium silicate is a light blue lumpy or granular solid. After dissolving at high temperature and pressure, it is a slightly colored transparent or translucent viscous liquid.

Molecular formula

Na2O · mSiO2

The mixing ratio of quartz sand and alkali, that is, the molar ratio of SiO2 and Na2O determines the modulus M of sodium silicate. The modulus shows the composition of sodium silicate and affects the physical and chemical properties of sodium silicate. Sodium silicate has different uses.

Is widely used in general casting, precision casting, papermaking, ceramics, clay, beneficiation, kaolin, washing and many other fields.