Acetic Anhydride

Formula: C4H6O3
CAS: 108-24-7
Formula Weight: 102.09  g/mol
Density: 1.08  g/cm3
Melting Point: -73  °C
Boiling Point: 138-140  °C
Purity: --
Concentration: --

Hazard and Safety Information


Signal Word: Danger!
Oral-LD50: 1780  mg/kg
Flash Point: 49 °C
Auto Ignition: 331 °C
Flinn Family: O1

GHS Hazard Statement: Flammable liquid and vapour. Harmful if swallowed. Causes severe skin burns and eye damage. Harmful if inhaled.

GHS Precautionary Statement: Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician.

General Hazard Information: Corrosive, a lachrymator, and moderately toxic by ingestion and inhalation. Slightly toxic by skin absorption. Avoid contact with skin, eyes, and mucous membranes. Avoid breathing vapor. Class II Combustible liquid.

Storage: Flinn Family: Organic #1. Store in/on shelf with acids, amino acids, anhydrides, peracids. Store certain organic acids in acid cabinet.

Disposal: General and institutional diposal instructions can go here.


Infrared - NIST Chemistry Webbook

Title: Acetic anhydride    State: LIQUID (NEAT)    Instrument: BAIRD (GRATING)    Parameters: NaCl PRISM    Filename: ./spectra/external/IR/5/5-b-IR-NIST-neat.jdx   

Infrared - NIST Chemistry Webbook

Title: Acetic acid, anhydride    State: gas    Filename: ./spectra/external/IR/5/5-b-NIST-gas.jdx   

Mass Spec - NIST Chemistry Webbook

Title: Acetic anhydride    Filename: ./spectra/external/MS/5/5-b-MS-NIST.jdx