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2. Used in the production of soap, synthetic detergent, synthetic fatty acid and the refining of animal and vegetable oils.

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4. Chemical industry is used to produce borax, sodium cyanide, oxalic acid, phenol and so on.

天美糖心果冻星空|天美｀星空丶果冻丶62|天美mv乌鸦星空果冻|天美mv麻花mv星空mv|天美麻花麻花果冻免费|天美糖心果冻星空在线|天美果冻乌鸦星空糖心5. The petroleum industry is used to refine petroleum products and to drill mud in oil fields. It is also used for surface treatment of alumina, zinc and copper, glass, enamel, leather, medicine, dyes and pesticides.

6. Food-grade products are used as acid neutralizers in food industry, peeling agents for citrus and peach, detergents for empty bottles and cans, decolorizers and deodorants.

7. It can also be used as an alkaline desiccant. Caustic soda is widely used in the national economy, and many industrial departments need it. The most frequently used sectors of caustic soda are chemical manufacturing, followed by paper, aluminium, tungsten, rayon, rayon and soap manufacturing. In addition, in the production of dyes, plastics, pharmaceuticals and organic intermediates, the regeneration of old rubber, the electrolysis of metal sodium and water, and the production of inorganic salts, borax, chromium salts, manganate, phosphate and so on, a large amount of caustic soda should also be used.