Caustic soda, chemical name sodium hydroxide, white translucent flake solid, is the basic chemical raw material, widely used in paper making, synthetic detergent and soap, viscose fiber, rayon and cotton fabrics and other light textile industry, pesticide, dye, rubber and chemical industry, petroleum drilling, refining petroleum oil and oil and refining tar oil industry, As well as national defense industry, machinery industry, wood processing, metallurgy industry, pharmaceutical industry and urban construction. It is also used in the manufacture of chemicals, paper, soap and detergent, rayon and cellophane, the processing of bauxite to alumina, and the mercerization of textiles, water treatment and so on.

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