Characters are white translucent flake solids, caustic soda is a basic chemical raw material, widely used in papermaking, synthetic washing and soap, viscose fiber, rayon and cotton textiles and other light textile industries, pesticides, dyes, rubber and chemical industry , oil drilling, Refined petroleum grease and refining tar oil industry, as well as defense industry, machinery industry, wood processing, metallurgical industry, pharmaceutical industry and urban construction. It is also used in the manufacture of chemicals, paper, soaps and detergents, rayon and cellophane, processed alumina made from bauxite, and also used in mercerizing of textiles, water treatment, etc.
