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Merck
CN

242845

乙酸酐

ACS reagent grade, ≥98.0%, liquid

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
NACRES:
NA.21
PubChem Substance ID:
24854587
UNSPSC Code:
12352100
EC Number:
203-564-8
MDL number:
MFCD00008705
Beilstein/REAXYS Number:
385737

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产品名称

乙酸酐, ACS reagent, ≥98.0%

InChI key

WFDIJRYMOXRFFG-UHFFFAOYSA-N

InChI

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

SMILES string

CC(=O)OC(C)=O

grade

ACS reagent

vapor density

3.5 (vs air)

vapor pressure

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

assay

≥98.0%

form

liquid

autoignition temp.

629 °F

expl. lim.

10.3 %

impurities

MnO4- reducers, passes test

evapn. residue

≤0.003%

refractive index

n20/D 1.390 (lit.)

bp

138-140 °C (lit.)

mp

−73 °C (lit.)

solubility

H2O: slightly soluble

density

1.08 g/mL (lit.)

anion traces

chloride (Cl-): ≤5 ppm
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤5 ppm

cation traces

Fe: ≤5 ppm
heavy metals: ≤2 ppm

functional group

anhydride
ester

Quality Level

200

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相关类别

Application

醋酸酐已作为反应组分之一，用于制备：
  • 2-乙酰氨基-5-氨基苯磺酸
  • 3,3′-双(磺酸根基)-4,4′-双(氯乙酰氨基)偶氮苯(BSBCA)
  • 10-乙酸基-9-硝基硬脂酸，烯丙酯
  • 9-硝基油酸
可用于在间歇式反应器中通过HBEA沸石乙酰化苯甲醚。

General description

醋酸酐是一种有机溶剂溶于水后，其可经过溶剂分解得到乙酸。它被广泛用于各种醇的乙酰化。Wacher法（起始试剂＝烯酮）和Knapsack法（起始试剂＝乙醛）已报到可用于工业上制备乙酸酐。

signalword

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

wgk

WGK 1

flash_point_f

120.2 °F - closed cup

flash_point_c

49 °C - closed cup

ppe

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

法规信息

易制毒化学品（2类）
危险化学品
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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCZ4436
MKCZ1880
MKCX7532
MKCW7583
MKCW3422

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