Caustic soda which is an important chemical raw materials, mainly for the food industry, oil, paper making, artificial fiber, textile, printing and dyeing, sewage disposal, non-ferrous metal smelting, chemical fertilizer, power plant water treatment, organic synthesis, pharmaceutical, daily chemical, fine chemical, plastic and water treatment and other industries.
Sodium hydroxide is mainly used in papermaking, cellulose pulp production, soap, synthetic detergent, synthetic fatty acid production and refining of animal and vegetable oils. In textile printing and dyeing industry, it is used as desizing agent, scouring agent and mercerizing agent for cotton cloth. In the chemical industry, it is used to produce borax, sodium cyanide, formic acid, oxalic acid, phenol, etc. It is used in the petroleum industry to refine petroleum products and is used in oilfield drilling mud. It is also used in the production of alumina, surface treatment of metal zinc and metal copper, as well as glass, enamel, leather, medicine, dyes and pesticides. Food-grade products are used as acid neutralizers in the food industry, as peeling agents for citrus and peaches, as well as detergents for containers such as empty bottles and cans, as well as decolorizers and deodorizers.
When sodium hydroxide is used as a basic reagent, it can be used as a neutralizer, a complex masking agent, a precipitant, a precipitation masking agent, an absorbent for a small amount of carbon dioxide and water, and a color developer for the determination of ketone sterol by thin-layer analysis. It is widely used Used in the manufacture of various sodium salts, soaps, pulp, finishing cotton, silk, viscose fibers, regeneration of rubber products, metal cleaning, electroplating, bleaching, etc.
In cosmetic creams, saponification such as sodium hydroxide and stearic acid acts as an emulsifier to make creams, shampoos, etc.
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