Acetic Anhydride C4H6O3 With A Purity Of 99%

Physical property

Appearance and properties: colorless transparent liquid, there is a pungent odor, its vapor is the tear gas.

Melting point (c):-73.1

Relative density (water =1):1.08

Boiling point (c):138.6                         

Relative vapor density (air =1):3.52

Molecular formula: C4H6O3

Molecular weight: 102.09                     

Saturated vapor pressure (kPa):1.33 (36 C)

Combustion heat (kJ/mol):1804.5

Critical temperature (c):326

Critical pressure (MPa):4.36

Flash point (c):49

Explosion upper limit% (V/V):10.3

Ignition temperature (c):316

Explosion lower limit% (V/V):2.0

Solubility: soluble in ethanol, ethyl ether, benzene

Flammable vapor and air can form explosive mixtures, in case of fire, high fever can cause combustion and explosion. With strong oxidant exposure can occur chemical reaction [1] to make alcohol, phenol, ammonia and amines were formed acetate and acetamide compounds. In the presence of Lewis acid, acetic anhydride can also resulted in aromatic or olefinic diameter acetylation reaction. In the presence of sodium acetate, acetic anhydride and benzaldehyde occurred condensation reaction, generate cinnamic acid. Slowly dissolved in the water into acetic acid and alcohols generated acetate

Acetic anhydride (acetic anhydride) is important for the acetylation reagent, acetic anhydride for the manufacture of cellulose acetate, acetic acid plastic, non flammable film stock; in the pharmaceutical industry for manufacturing synthomycin, furazolidone, Dibazol, sulfa drugs; in dye industry is mainly used in the production of disperse blue HCl; disperse red s-swel; dispersion yellow brown s-2rel etc.; L; disperse yellow brown s-2rel and so on; 

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