Sodium Hydroxide (Caustic Soda flake)

Sodium hydroxide, also known as caustic soda, caustic soda, is an inorganic compound with the formula NaOH and a relative molecular weight of 39.9970.

Sodium hydroxide has a strong alkaline, extremely corrosive, can be used as acid neutralizer, with masking agent, precipitating agent, precipitation masking agent, color development agent, saponification agent, peeling agent, detergent, etc., the use is very wide.

Sodium hydroxide has a corrosive effect on fibers, skin, glass, ceramics, etc., and will release heat when dissolved or diluted in concentrated solution. The neutralization reaction with inorganic acid can also produce a lot of heat and generate the corresponding salts. React with aluminum and zinc, non-metallic boron and silicon to release hydrogen; Disproportionation reaction occurs with halogens such as chlorine, bromine and iodine. Can precipitate metal ions from aqueous solution to become hydroxide; It can make the oil saponification reaction, generate the corresponding organic acid sodium salt and alcohol, which is the principle of removing the oil on the fabric.

【 Use 1 】

Basic chemical raw materials, used as high-purity reagents, widely used in chemical, metallurgy, paper, petroleum, textile and daily chemical and other departments.

【 Use 2 】

Used analytically as a calibration of acids

【 Use 3 】

It is mainly used in viscose rayon, synthetic fiber, dye intermediate, rubber regeneration, fabric bleaching and dyeing, paper making, soap making, leather and so on

【 Use 4 】

It is used as an analytical reagent, saponification agent, absorbent for a small amount of carbon dioxide and water, and is also used in sodium salt manufacturing

【 Use 5 】

Used in textile, printing and dyeing, enamel, paper, synthetic detergent, pesticide, metallurgy, food, rubber and other industries

【 Use 6 】

Basic chemical raw materials, widely used in chemical industry, metallurgy, paper, petroleum, textile and daily chemical industry and other departments

【 Use 7 】

For the production of paper making and cellulose pulp; It is used in the production of soap, synthetic detergent, synthetic fatty acids and the refining of animal and vegetable oils. Textile printing and dyeing industry used as cotton desizing agent, boiling agent and mercerizing agent. Chemical industry for the production of borax, sodium cyanide, formic acid, oxalic acid, phenol and so on. The petroleum industry is used to refine petroleum products and in oilfield drilling mud. It is also used for the surface treatment of aluminum oxide, metal zinc and metal copper, as well as glass, enamel, leather, medicine, dyes and pesticides. Food grade products are used in the food industry as acid neutralizer, peel agent for citrus, peaches, etc., as well as decolorizing agent, deodorizing agent.

【 Use 8 】

As an acid neutralizer, it can be used for peeling in fruit processing, and can also be used as a detergent for empty bottles, empty cans and other containers, according to the production needs.

【 Use 9 】

Basic analytical reagents for a wide range of applications. Standard lye for preparation and analysis. A small amount of carbon dioxide and water absorbent. Neutralization of acid. Sodium salt manufacturing.

【 Use 10 】

Basic analytical reagents for a wide range of applications. Standard lye for preparation and analysis. A small amount of carbon dioxide and water absorbent. Neutralization of acid. Sodium salt manufacturing. Used to calibrate instruments for the determination of molecular weight of polymer materials, evaluate measurement methods and assign molecular weight property values to polymer materials.

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There are two kinds of sodium hydroxide characters: crystalline and anhydrous. White or nearly white, or microstrip color. It is a shiny pellet, tablet, rod, block or other shape. Pure product is colorless transparent crystal, relative density 2.130, melting point 318.4℃, boiling point 1390℃. It is easily hygroscopic when exposed to air and eventually completely dissolves into a liquid. Soluble in water and strongly exothermic, aqueous solution is strongly alkaline, strong corrosion. A 4% aqueous solution has a pH of 14. It can also dissolve in methanol, ethanol, glycerol, etc., insoluble in ether and acetone. It is easy to absorb carbon dioxide from the air and gradually change into sodium carbonate. In addition, liquid sodium hydroxide products are also available.