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110043

Sigma-Aldrich

Acetic anhydride

≥99%

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Synonym(s):
Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride
Linear Formula:
(CH3CO)2O
CAS Number:
108-24-7
Molecular Weight:
102.09
Beilstein:
385737
EC Number:
203-564-8
MDL number:
MFCD00008705
UNSPSC Code:
12352100
PubChem Substance ID:
24846953

vapor density

3.5 (vs air)

Quality Level

100

vapor pressure

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

Assay

≥99%

autoignition temp.

629 °F

expl. lim.

10.3 %

availability

available only in EU

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.)

SMILES string

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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Description
Pricing

Signal Word

Danger

Hazard Statements

H226,H302,H314,H330

Hazard Classifications

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

Supplementary Hazards

EUH071

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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