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nature : also known as caustic soda. The common caustic soda or soda. For pure transparent colorless crystals. 2.13g/cm3 density. 318.4 ° C melting point. Boiling Point 1390 ° C Industrial products containing a small amount of sodium carbonate and sodium chloride as a white opaque crystals. A massive sheet, granular and Corynebacterium, collectively solid base. Into a concentrated solution of products commonly known as caustic. Water-soluble. Hygroscopicity large (except liquid caustic soda), on the humid air will gradually transformed into solution. From the air easily absorb carbon dioxide and gradually turned into sodium carbonate. To be stored in closed metal containers or glass containers. On the skin, fabric, paper, a strong corrosive. The great eye injury. Production methods have salt solution and chemical electrolysis method. Chemical Lime there Causticizing law. It is the most basic and most important one of the chemicals. Uses very wide. Used in the manufacture of pulp, soap, dyes, artificial silk, aluminum, petroleum refining, cotton fabric collating, coal tar products of purification, as well as food processing, wood processing and industrial machinery and so on.
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