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539996 Sigma-Aldrich

Acetic anhydride

99.5%

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Properties

vapor density   3.5 (vs air)
vapor pressure   10 mmHg ( 36 °C)
  4 mmHg ( 20 °C)
InChI Key   WFDIJRYMOXRFFG-UHFFFAOYSA-N
assay   99.5%
autoignition temp.   629 °F
expl. lim.   10.3 %
refractive index   n20/D 1.390(lit.)
bp   138-140 °C(lit.)
mp   −73 °C(lit.)
solubility   water: slightly soluble
density   1.08 g/mL(lit.)

Description

Packaging

1, 4 kg in glass bottle

18 kg in poly drum

25 g in glass bottle

Application

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

General description

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

Price and Availability

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 1715 3(8) / PGII
WGK Germany 
1
RTECS 
AK1925000
Flash Point(F) 
120.2 °F
Flash Point(C) 
49 °C

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles
Peer-Reviewed Papers
15

References

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