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caustic soda liquid

Colorless transparent liquid
CAS NO.:1310-73-2      Formula:NaOH

Product introduction

 

CAS NO. 1310-73-2 Formula NaOH
Appearance Colorless transparent liquid HS CODE 28151100
CLASS 8 UN NO. 1823

The pure product is a colorless transparent liquid. The relative density is 2.130, the melting point is 3184.4°C, and the boiling point is 1390°C. There are two kinds of caustic soda: solid and liquid: pure solid caustic soda is white, with flakes, blocks, granules and rods, and is brittle; pure liquid caustic soda is called liquid caustic soda, which is colorless and transparent liquid. Solid caustic soda has strong hygroscopicity, is easily soluble in water, exothermic when dissolving, the resulting solution is strongly alkaline, has a smooth touch and bitter taste, is also soluble in ethanol and glycerol, insoluble in acetone, ether, acetic acid. When it encounters acid, it neutralizes to form salt and water. It has the ability to saponify oil and produce soap and glycerin. It is easy to absorb carbon dioxide and moisture in the air and turn it into carbonate. It disproportionates with halogens such as chlorine, bromine and iodine. It reacts with metal aluminum zinc and non-metallic silicon, boron, etc. to release hydrogen. It is extremely corrosive and has a corrosive effect on skin, fibers, glass, ceramics, etc. Pure sodium hydroxide is a white, feathery, opaque solid crystal. General industrial products contain a small amount of sodium chloride and sodium carbonate, and it is a white and light-colored lustrous solid crystal. Sodium hydroxide is one of the strong bases that react with acids to form sodium salts. Sodium hydroxide is highly hygroscopic, and can absorb a large amount of water when placed in the air and deliquescence into liquid caustic soda.

The main purpose
It is an important chemical basic raw material and has a wide range of uses. The chemical industry is used in the manufacture of formic acid, oxalic acid, borax, phenol, sodium cyanide and soap, synthetic fatty acids, synthetic detergents, etc. In textile printing and dyeing industry, it is used as cotton desizing agent, scouring agent, mercerizing agent and solvent for vat dye and Haichang blue dye. The smelting industry is used to manufacture aluminum hydroxide, alumina and metal surface treatment agent. The instrument industry is used as acid neutralizer, decolorizer and deodorizer. Adhesive industry is used as starch gelatinizer and neutralizer. In addition, it is widely used in enamel, medicine, cosmetics, leather, paint, pesticide, glass and other industries.

Packaging, storage and transportation: liquid caustic soda is shipped by tanker or storage tank; industrial solid caustic soda is packed in iron drums or other airtight containers. On the package: “Corrosive Substances” logo. Store in a ventilated, dry place. In case of fire, water, yellow sand and various fire extinguishers can be used to put out the fire.

 

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