539996

Acetic anhydride

99.5%

• Synonym(s): Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride
• Linear Formula: (CH₃CO)₂O
• CAS Number: 108-24-7
• Molecular Weight: 102.09
• Beilstein: 385737
• Número EC: 203-564-8
• Número MDL: MFCD00008705
• ID de substância PubChem: 24878429
• NACRES: NA.21

Properties

• densidade de vapor: 3.5 (vs air)
• Nível de qualidade: 200
• pressão de vapor: 10 mmHg ( 36 °C); 4 mmHg ( 20 °C)
• teor: 99.5%
• temperatura de autoignição: 629 °F
• Lim. expl.: 10.3 %
• índice de refração: n20/D 1.390 (lit.)
• pb: 138-140 °C (lit.)
• pf: −73 °C (lit.)
• solubilidade: water: slightly soluble
• densidade: 1.08 g/mL (lit.)
• SMILES string: CC(=O)OC(C)=O
• InChI: 1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
• InChI key: WFDIJRYMOXRFFG-UHFFFAOYSA-N

Description

Descrição geral

Acetic anhydride is a carboxylic acid anhydride commonly used for the acetylation of amines and alcohols.[1] It undergoes exothermic reaction on addition of water to form acetic acid.[2] The photodecomposition of acetic anhydride has been studied over the temperature range from 60-160°C.[3] The impact of treating pine wood with acetic anhydride has been investigated to evaluate the toughness of pine wood.[4]

Aplicação

Acetic anhydride has been used in the preparation of 6-dimethylamino-2,3-naphthalenedicarboxylic anhydride.[5] It has also been used to generate acetate ions during high resolution chemical ionization mass spectrometry (CI-ToFMS) analysis.

Embalagem

25 g in glass bottle

1, 4 kg in glass bottle

18 kg in poly drum

Safety Information

• Pictogramas: GHS02,GHS05,GHS06
• Palavra indicadora: Danger
• Frases de perigo: H226 - H302 - H314 - H330
• Declarações de precaução: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classificações de perigo: Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
• Código de classe de armazenamento: 3 - Flammable liquids
• WGK: WGK 1
• Ponto de fulgor (ºF): 120.2 °F - closed cup
• Ponto de fulgor (ºC): 49 °C - closed cup
• Equipamento de proteção individual: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter