Benzoic acid of C6H5СООН 2916310000
Benzoic acid C6H5COOH is the simplest monobasic carboxylic acid of the aromatic series.
Benzoic acid - white crystals, poorly soluble in water, well - in ethanol, chloroform and diethyl ether. Benzoic acid, like most other organic acids, is a weak acid (pKa 4.21).
Pure acid has a melting point of 122.4 В° C and a boiling point of 249 В° C. Sublimes easily; distilled with water vapor, therefore, do not concentrate aqueous solutions of benzoic acid by evaporation. Salts of benzoic acid have high bactericidal and anti-septic activity, which increases strongly with decreasing pH.
Benzoic acid, due to its low toxicity, is widely used as a preservative in the food industry, as an antiseptic substance in medicine, in the perfumery and cosmetic industry.
Benzoic acid is used in the manufacture of phenol, benzyl chloride, caprolactone, as an additive to varnishes that enhance gloss, adhesion and resistance to aggressive environments.