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539996

乙酸酐

99.5%

别名:

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

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关于此项目

线性分子式:
(CH3CO)2O
化学文摘社编号:
108-24-7
分子量:
102.09
UNSPSC Code:
12352100
NACRES:
NA.21
PubChem Substance ID:
24878429
EC Number:
203-564-8
Beilstein/REAXYS Number:
385737
MDL number:
MFCD00008705
Assay:
99.5%
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vapor density

3.5 (vs air)

Quality Segment

vapor pressure

10 mmHg ( 36 °C), 4 mmHg ( 20 °C)

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.)

functional group

anhydride, ester

SMILES string

CC(=O)OC(C)=O

InChI

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

InChI key

WFDIJRYMOXRFFG-UHFFFAOYSA-N

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.

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.

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警示词

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

存储类别

3 - Flammable liquids

闪点 (F)

120.2 °F - closed cup

闪点 (°C)

49 °C - closed cup

PPE（个人防护设备）

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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