18102

Benzoic acid

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

• Sinônimo(s): Benzenecarboxylic acid, Carboxybenzene
• Fórmula linear: C₆H₅COOH
• Número CAS: 65-85-0
• Peso molecular: 122.12
• Beilstein: 636131
• Número CE: 200-618-2
• Número MDL: MFCD00002398
• Código UNSPSC: 12352100
• ID de substância PubChem: 57647710
• NACRES: NA.21

Propriedades

• densidade de vapor: 4.21 (vs air)
• Nível de qualidade: 200
• pressão de vapor: 10 mmHg ( 132 °C)
• Ensaio: 99.5-100.5% (alkalimetric)
• Formulário: crystalline
• temperatura de autoignição: 1061 °F
• qualidade: meets analytical specification of Ph. Eur., BP, USP, FCC, E210
• Impurezas: oxidisable substances, complies; residual solvents, complies; ≤0.0005% heavy metals (as Pb); ≤0.03% halogen compounds (as Cl); ≤0.7% water (Karl Fischer)
• resíduo de ignição: ≤0.05% (as SO₄)
• perda: ≤0.5% loss on drying, 3 h (via H₂SO₄)
• pH: 3-5 (20 °C, 0.1%)
• p.e.: 249 °C (lit.)
• pf: 121-125 °C (lit.)
• solubilidade: water: soluble (2.9 g/l at 25 °C)
• traços de cátion: As: ≤3 mg/kg; Cu: ≤10 mg/kg; Hg: ≤1 mg/kg; Pb: ≤2 mg/kg; Zn: ≤20 mg/kg
• adequação: complies for appearance of solution; complies for reaction against H₂SO₄
• grupo funcional: carboxylic acid; phenyl
• cadeia de caracteres SMILES: OC(=O)c1ccccc1
• InChI: 1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)
• chave InChI: WPYMKLBDIGXBTP-UHFFFAOYSA-N

Descrição

Descrição geral

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.[1]

Aplicação

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:[1]

• 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.[2]

Informações de segurança

• Pictogramas: GHS08,GHS05
• Palavra indicadora: Danger
• Frases de perigo: H315,H318,H372
• Declarações de precaução: P260 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P314
• Classificações de perigo: Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation
• Órgãos-alvo: Lungs
• Código de classe de armazenamento: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable
• Equipamento de proteção individual: dust mask type N95 (US), Eyeshields, Faceshields, Gloves