1.Used in the production of paper making and cellulose pulp :
2,Used in the production of soap ,synthetic detergents,synthents fatty acids and the refining of animal fat and plant oils;
3.Used as cotton desizing agents,boiling agents and silks in textile and dyeing industry;
4.Used in production of borax ,sodium cyanide ,oxalic acid,phenol,etc.in chemical industry;
5.Used in petroleum product refining in the petroleum industry and oil drilling mud ,surface treatment of alumina,zinc and copper in the production process ,as well as glass ,enamel ,leather-making,medicine,dyes,pesticides and other fields;
6.Used in production of dye ,plastics,pharmaceutical,organic intermediates,regeneration old rubber,metallic sodium and inorganic salt,in the process of water electrolysis,and also in producing borax,chromium salt,manganese acid salt,phosphate,etc.;
7.Used as alkaline desiccant
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