English name: ACETIC ACID,Ethanic acid,Vinegar acid
Abbreviations: A C United Nations Number (UNNO) :2789
Chemical formula: CH3COOH
Physical properties:
Relative density (water is 1): 1.050 Freezing point (ºC):16.7
Boiling point (ºC) : 118.3
Viscosity (Pa.s) : 1.22
Vapor pressure at 20ºC (KPa) : 1.5
Appearance and smell: Colorless liquid with a pungent vinegar taste.
Solubility: Soluble in water, ethanol, ether, carbon tetrachloride and glycerol and other organic solvents.
Compatibility: Strong corrosion to metal after dilution.
Chemical property
Acetic acid has the typical properties of carboxylic acids, mainly in the following two aspects:
Acid acetic acid has obvious acidity, in aqueous solution can ionize part of hydrogen ions, it is a weak acid.
The ionization constant Ki of acetic acid is 1.8×10-5(25ºC), and its acidity is stronger than that of carbonic acid (4.3×10-7 at 25ºC). Acetic acid has the properties of acid. For example, it turns blue litmus paper red; It can react with metals, but also with alkali, sodium carbonate and sodium bicarbonate.
It is mainly used for the preparation of acetic anhydride, vinyl acetate, acetate, metal acetate and chlorine. Acetic acid, cellulose acetate, etc., used in the production of ethyl acetate, edible spices, wine spices, etc., used as analytical reagents, solvents and leaching agents
For example, the production of glacial acetic acid as raw material: n-butyl acetate is a colorless, fruity organic chemical raw materialPacking: 25kg or 250kg plastic drumPrecautions: (1) Do not expose to the sun, store in a cool place

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