All Photos(1)

18102

Sigma-Aldrich

Benzoic acid

meets analytical specification of Ph. Eur., BP, USP, FCC, E210, 99.5-100.5% (alkalimetric)

Linear Formula:
C6H5COOH
CAS Number:
Molecular Weight:
122.12
Beilstein:
636131
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

vapor density

4.21 (vs air)

vapor pressure

10 mmHg ( 132 °C)

assay

99.5-100.5% (alkalimetric)

form

crystalline

autoignition temp.

1061 °F

quality

meets analytical specification of Ph. Eur., BP, USP, FCC, E210

impurities

oxidisable substances, complies
residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.03% halogen compounds (as Cl)
≤0.7% water (Karl Fischer)

ign. residue

≤0.05% (as SO4)

loss

≤0.5% loss on drying, 3 h (via H2SO4)

pH

3-5 (20 °C, 0.1%)

bp

249 °C (lit.)

mp

121-125 °C (lit.)

solubility

water: soluble (2.9 g/l at 25 °C)

cation traces

As: ≤3 mg/kg
Cu: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg
Zn: ≤20 mg/kg

suitability

complies for appearance of solution
complies for reaction against H2SO4

SMILES string

OC(=O)c1ccccc1

InChI

1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)

InChI key

WPYMKLBDIGXBTP-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

Application

Benzoic acid may be employed as a standard in the 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.

pictograms

CorrosionHealth hazard

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation

Target Organs

Lungs

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK Germany

WGK 1

Flash Point F

249.8 °F - closed cup

Flash Point C

121 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Hydroxylation by electrochemically generated OH. radicals. Mono-and polyhydroxylation of benzoic acid: products and isomer distribution.
Oturan MA and Pinson J.
The Journal of Physical Chemistry, 99(38), 13948-13954 (1995)
Eagleson M.
Concise Encyclopedia Chemistry, 122-122 (1994)
G C Tremblay et al.
Pharmacology & therapeutics, 60(1), 63-90 (1993-10-01)
Detoxification of sodium benzoate by elimination as a conjugate with glycine, a nonessential amino acid, provides a pathway for the disposal of waste nitrogen. Since 1979, sodium benzoate has been widely used in the therapeutic regimen to combat ammonia toxicity...
S Nacht et al.
Journal of the American Academy of Dermatology, 4(1), 31-37 (1981-01-01)
The transepidermal penetration and metabolic disposition of 14C-benzoyl peroxide were assessed in vitro (excised human skin) and in vivo (rhesus monkey). In vitro, the benzoyl peroxide penetrated into the skin, through the stratum corneum or the follicular openings, or both...
Copper-mediated C-H/C-H biaryl coupling of benzoic acid derivatives and 1,3-azoles.
Mayuko Nishino et al.
Angewandte Chemie (International ed. in English), 52(16), 4457-4461 (2013-03-21)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service