The chemical formula of acetic acid is CH3COOH. Acetic acid is a colorless, pungent and sour liquid with a melting point of 16.6℃, a boiling point of17.87℃ and a density of 1.0492g/cm3. Pure acetic acid can be combined into an icy solid below 16.6℃, also known as glacial acetic acid. Acetic acid is soluble in water and many organic solvents. Acetic acid is highly corrosive, and its aqueous solution is weakly acidic, which can react with various active metals, basic oxides and bases to form acetate. Some acetates such as manganese acetate and aluminum acetate can be used as mordants in dyeing industry. There are two methods to produce acetic acid in industry: one is fermented vinegar, which takes grain or wine as raw material and is often used in vinegar. Vinegar contains not only 3-6% acetic acid, but also other organic acids and protein. The other is that ethylene (C2H4) or butane (C4H 10) extracted from petroleum pyrolysis gas is oxidized to acetic acid under certain conditions. Acetic acid is an important organic chemical raw material, which is used to produce acetate fiber, spray paint solvent, perfume, dye, medicine and so on.

1. Physical and chemical constants of substances:

GBNo。 8 160 1

Si Nuo. 64- 19-7

Chinese name acetic acid

English name acetic acid

Another name for acetic acid; glacial acetic acid

The molecular formula C2H4O2；; CH3COOH is a colorless and transparent liquid with pungent sour taste.

Molecular weight 60.05 Vapor pressure 1.52 kPa /20℃ Flash point: 39℃

Melting point 16.7℃ Boiling point: 1 18. 1℃ Soluble in water, ether and glycerol, insoluble in carbon disulfide.

Density Relative density (water =1)1.05; The relative density (air = 1)2.07 is relatively stable.

Danger sign 20 (acid corrosive products) is mainly used for manufacturing acetate, cellulose acetate, medicine, pigment, ester, plastic and perfume.

Acetic acid solution of hydrogen bromide

Hydrobromic acid in acetic acid solution of hydrogen bromide: glacial acetic acid solution of hydrogen bromide Chemical formula: HBR+CH3COOH Structural formula CAS: HBR10035-10-6 CH3COOH 64-19-7 Product specification speci. Esterification Appearance Orange-red transparent liquid Appearance content 33% 40% Main content Acidity ≥90% ≥ 100% Acidity Free bromine ≤200 ppm≤400 ppm Br Cl- content ≤200 ppm Cl- water ≤ 2,000 ppm ≤ 4,000 ppm Moisture product Application: Mainly used in medicine. Medically used to synthesize sedatives and anesthetics, such as hydrocortisone. It can be used in petroleum industry and synthetic dyes and spices. There are general pharmacies and hospitals.