691275

Acetic anhydride

Arxada quality, ≥99.5% (GC)

• 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
• EC Number: 203-564-8
• MDL number: MFCD00008705
• UNSPSC Code: 12352106
• PubChem Substance ID: 329761397
• NACRES: NA.22

Properties

• vapor density: 3.5 (vs air)
• vapor pressure: 10 mmHg ( 36 °C); 4 mmHg ( 20 °C)
• Assay: ≥99.5% (GC)
• form: liquid
• autoignition temp.: 629 °F
• quality: Arxada quality
• expl. lim.: 10.3 %
• manufacturer/tradename: Arxada AG
• impurities: ≤0.5% acetic acid
• refractive index: n20/D 1.390 (lit.)
• bp: 138-140 °C (lit.)
• mp: −73 °C (lit.)
• solubility: H₂O: slightly soluble
• density: 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

Analysis Note

KMnO₄ test ≤40 mL (0.1% KMnO₄ per 20 mL)

Safety Information

• Pictograms: GHS02,GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H226,H302,H314,H330
• Precautionary Statements: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point(F): 120.2 °F - closed cup
• Flash Point(C): 49 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves