Alkali is one of the important chemical raw materials, used in the preparation of chemicals, cleaning agents, detergents, photography and pharmaceuticals. Most of it is used for industry, and a small part is for civilian use. Among industrial soda ash, it is mainly used in light industry, building materials, and chemical industries, accounting for about 2/3; followed by metallurgy, textiles, petroleum, national defense, medicine, and other industries. The glass industry is the largest consumer sector of soda ash, consuming 0.2 tons of soda ash per ton of glass. In the chemical industry, it is used to produce sodium silicate, sodium dichromate, sodium nitrate, sodium fluoride, baking soda, borax, trisodium phosphate, etc. In the metallurgical industry, it is used as a flux in smelting, a flotation agent for mineral processing, and as a desulfurizer in steel and antimony refining. Used as water softener in printing and dyeing industry. In tanning industry, it is used for degreasing raw hides, neutralizing chrome tanned leather and increasing the alkalinity of chrome tanning liquid. It is also used in the production of synthetic detergent additive sodium tripolyphosphate and other sodium phosphate salts. Food grade soda ash is used to produce MSG, pasta, etc.