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Merck

18102

Sigma-Aldrich

Benzoic acid

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

Synonim(y):

Benzenecarboxylic acid, Carboxybenzene

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About This Item

Wzór liniowy:
C6H5COOH
Numer CAS:
Masa cząsteczkowa:
122.12
Beilstein:
636131
Numer WE:
Numer MDL:
Kod UNSPSC:
12352100
Identyfikator substancji w PubChem:
NACRES:
NA.21

gęstość pary

4.21 (vs air)

Poziom jakości

ciśnienie pary

10 mmHg ( 132 °C)

Próba

99.5-100.5% (alkalimetric)

Postać

crystalline

temp. samozapłonu

1061 °F

jakość

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

zanieczyszczenia

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

pozostałość po prażeniu

≤0.05% (as SO4)

strata

≤0.5% loss on drying, 3 h (via H2SO4)

pH

3-5 (20 °C, 0.1%)

tw

249 °C (lit.)

mp

121-125 °C (lit.)

rozpuszczalność

water: soluble (2.9 g/l at 25 °C)

ślady kationów

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

przydatność

complies for appearance of solution
complies for reaction against H2SO4

ciąg SMILES

OC(=O)c1ccccc1

InChI

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

Klucz InChI

WPYMKLBDIGXBTP-UHFFFAOYSA-N

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Opis ogólny

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.

Zastosowanie

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.
This page may contain text that has been machine translated.

Piktogramy

Health hazardCorrosion

Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

Zwroty wskazujące środki ostrożności

Klasyfikacja zagrożeń

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

Organy docelowe

Lungs

Kod klasy składowania

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


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Hydroxylation by electrochemically generated OH. radicals. Mono-and polyhydroxylation of benzoic acid: products and isomer distribution.
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The Journal of Physical Chemistry, 99(38), 13948-13954 (1995)
Eagleson M.
Concise Encyclopedia Chemistry, 122-122 (1994)
S Nacht et al.
Journal of the American Academy of Dermatology, 4(1), 31-37 (1981-01-01)
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