Water glass is used in a wide range of applications throughout the national economy. In the chemical system is used to manufacture silica gel, silica, zeolite molecular sieves, sodium metasilicate pentahydrate, silica sol, layered silicon and instant powdered sodium silicate, sodium silicate and other silicate products. The basic raw material of silicon compounds. In the developed countries, the deep processing series of products with sodium silicate as raw materials have been developed to more than 50 kinds, some of which have been applied in the fields of high, fine and pointed technology; in the light industry, it is an indispensable raw material for detergents such as washing powder and soap. It is also a water softener and a preservative; it is used in the textile industry for dyeing, bleaching and sizing; it is widely used in the machinery industry for casting, grinding wheel manufacturing and metal preservatives; it is used in the construction industry for quick drying. Cement, acid-resistant cement waterproof oil, soil curing agent, refractory materials, etc.; can produce silicon fertilizer in agriculture; additionally used as silicon-aluminum catalyst for petroleum catalytic cracking, soap filler, corrugated adhesive, laboratory enamel and other high temperature resistant materials, Metal preservatives, water softeners, detergent builders, refractory materials and ceramic raw materials, textile bleaching, dyeing and slurry, mine dressing, waterproofing, plugging, wood fire prevention, food anti-corrosion and adhesives.