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12356 Sigma-Aldrich

Benzoic acid

tested according to Ph.Eur.

Synonym: Acidum benzoicum

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Properties

Related Categories Acids, Acids & Bases, Benzoic Acid and Benzoic Acid Solutions, Chemical Synthesis, Essential Chemicals,
vapor density   4.21 (vs air)
vapor pressure   10 mmHg ( 132 °C)
InChI Key   WPYMKLBDIGXBTP-UHFFFAOYSA-N
assay   99.9%
form   crystalline
autoignition temp.   1061 °F
pharmacopeia   testing conforms to Pharmacopeia
bp   249 °C(lit.)
mp   121-125 °C(lit.)
solubility   water: soluble (2.9 g/l at 25 °C)

Description

Application

Benzoic acid may be employed as a standard in quantitative and calorimetric studies. It may be employed as an intermediate in the synthesis of the following:
• paints
• pigments
• varnish
• wetting agents
• aroma compounds
• benzoyl chloride
• benzotrichloride
It was used to investigate the mechanism of complex addition reaction of hydroxyl radicals with various aromatic compounds.

General description

Benzoic acid is an aromatic monocarboxylic acid. It occurs in the form of colorless leaflets or needles. It reacts with hydrogenating reagents to afford hexahydrobenzoic acid. On decomposition (by heating) in the presence of lime or alkali, it affords benzene and carbon dioxide. It can be synthesized by the cobalt or manganese catalyzed atmospheric oxidation of toluene.

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Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
Target organs 
Lungs
Personal Protective Equipment 
WGK Germany 
1
RTECS 
DG0875000
Flash Point(F) 
249.8 °F
Flash Point(C) 
121 °C
Protocols & Articles

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