Caustic Soda, chemical name NAOH, white translucent flake solids, is a basic chemical raw material, widely used in papermaking, synthetic detergent and soap, viscose fiber, artificial silk and woven products and other light textile industries, agricultural medicine, dyes, rubber and chemical industries, petroleum drilling, petroleum refining petroleum oil and tar refining petroleum industry, as well as national defense industry, machinery industry, wood processing, metallurgical industry, medical industry and urban construction. In the future, the development of the Caustic Soda industry will focus on capacity optimization and environmental protection upgrades. With the global emphasis on environmental protection, energy saving, emission reduction, and resource recycling in the production process will become an industry consensus.