Acetic anhydride

CAS No.: 108-24-7
Formula: C4H6O3
Exact Mass: 102.03200
Molecular Weight: 102.08900
PSA: 43.37000
LogP: 0.09600
Description Feedback
Acetic Anhydride is a very useful synthetic intermediate. It is a reagent used generally in acetylation reactions in organic chemistry, primarily cellulose acetate and film material. It is also used in the production of aspirin, which is prepared by the acetylation of salicylic acid.

Properties Feedback
Appearance & Physical State:Colorless liquid
Melting Point:-73.1 °C
Boiling Point:140 °C
Flash Point:130 °F
Refractive Index:n20/D 1.390(lit.)
Water Solubility:REACTS
Stability:Stability Flammable. Incompatible with strong oxidizing agents, water, strong bases, alcohols.
Storage Condition:Store at RT.
Vapor Pressure:10 mm Hg ( 36 °C)
Vapor Density:3.5 (vs air)

Safety Info Feedback


hazard declaration:H226; H302; H314; H330
hazard declaration add:
waring notice:P210; P260; P280; P304 + P340 + P310; P305 + P351 + P338; P370 + P378
Hazard Class:8
Safety Statements:S26; S39; S45; S36/37/39
HS Code:29152400
Packing Group:II
WGK Germany:3
RIDADR:UN 2924 3/PG 2
Risk Statements:R11; R20/21/22; R37/38; R41; R34; R20/21;
Hazard Codes:C; Xn; F; Xi

GC Analytical Method Total: 6 GC Analytical Method
Normal alkane RI, non-polar column, temperature ramp [Detail]
Column type Active phase Temperature (C) Retention Index (I) Reference
Capillary OV-101 706. Zenkevich, 2005
Normal alkane RI, non-polar column, custom temperature program [Detail]
Column type Active phase Temperature (C) Retention Index (I) Reference
Capillary Polydimethyl siloxanes 706. Zenkevich, 2001


Precursor and Product