Industrial grade sodium silicate
2022-11-05
Sodium silicate is also known as water glass. The grain is called phaloid. It consists of different proportions of sodium oxide and silicon dioxide. The mole ratio of silica and sodium oxide is called modulus. Those whose modulus is greater than 3 are "neutral" water glass and those whose modulus is less than 3 are "alkaline" water glass. A variety of products are available in liquid, solid and powder form. Common is a clear colorless or yellowish to reddish viscous liquid. Density 2.4g/cm3. Melting point 1088℃(solid).
The preparation and production methods of sodium silicate are dry method and wet method. Dry method is made of soda ash (or sodium sulfate and pulverized coal) and quartz sand at high temperature melting white, and then after cooling, crushing, dissolution, concentration. The wet process is made by heating liquid caustic soda and quartz sand. Wet process is difficult to produce high modulus products, but it has the advantages of simple process, easy availability of raw materials and low cost.
Uses of sodium silicate in the soapmaking industry it is used as an additive to soaps to improve their alkalinity, hardness and strength, to increase friction and decontamination capacity. Silica-aluminum catalyst used in petroleum catalytic cracking in the petroleum industry. Chemical industry used for the manufacture of silica gel, silicate, molecular sieve, white carbon black and other raw materials. In the machinery industry, it is used for casting, grinding wheel manufacture and as a metal preservative. The construction industry is used to manufacture fast - drying cement, acid - resistant cement, corrugated board and refractory materials. The textile industry is used for dyeing, bleaching and sizing. The mining industry is used for beneficiation, waterproofing and plugging. Paper industry used as pulp binder. The box industry is used for gluing corrugated paper, hemp plate paper and thick board. In addition, it can be used for wood fire protection, egg storage extension, and as a highly effective detergent and water softener.
