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主要文件

COO原产地证书/COA分析证书

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539996

乙酸酐

Name: 乙酸酐
Brand: SIAL

99.5%

别名:

Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride

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About This Item

线性分子式:

(CH₃CO)₂O

CAS Number:

108-24-7

分子量:

102.09

Beilstein:

385737

EC 号:

203-564-8

MDL编号:

MFCD00008705

UNSPSC代码:

12352100

PubChem化学物质编号:

24878429

NACRES:

NA.21

蒸汽密度

3.5 (vs air)

质量水平

200

蒸汽压

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

方案

99.5%

自燃温度

629 °F

expl. lim.

10.3 %

折射率

n20/D 1.390 (lit.)

沸点

138-140 °C (lit.)

mp

−73 °C (lit.)

溶解性

water: slightly soluble

密度

1.08 g/mL (lit.)

官能团

anhydride
ester

SMILES字符串

CC(=O)OC(C)=O

InChI

1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3

InChI key

WFDIJRYMOXRFFG-UHFFFAOYSA-N

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一般描述

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.

应用

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.