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539996

Acetic anhydride

Name: Acetic anhydride
Brand: SIAL

99.5%

Synonym(s):

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

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About This Item

Linear Formula:

(CH₃CO)₂O

CAS Number:

108-24-7

Molecular Weight:

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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Properties

vapor density

3.5 (vs air)

Quality Level

200

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

Description

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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pictograms

GHS02,GHS06,GHS05

signalword

Danger

hcodes

H226,H302,H314,H330

pcodes

P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

Hazard Classifications

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

Storage Class

3 - Flammable liquids

flash_point_f

120.2 °F - closed cup

flash_point_c

49 °C - closed cup

ppe

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

Regulatory Information

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Toughness of pine wood chemically modified with acetic anhydride.

Papadopoulos AN and Tountziarakis P.

European Journal of Wood and Wood Products, 70(1-3), 399-400 (2012)

Acetic Anhydride Hydrolysis at High Acetic Anhydride to Water Ratios.

Fritzler BC, et al.

International Journal of Chemical Kinetics, 46(3), 151-160 (2014)

Photolysis of Acetic Anhydride.

Burwasser H and Taylor HA.

J. Chem. Phys. , 23(12), 2295-2299 (1955)

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Global Trade Item Number

SKU	GTIN
539996-25G	04061832566689
539996-1KG	04061832566672
539996-18KG	04061832566665
539996-4KG	04061832566696

Key Documents

Acetic anhydride

99.5%

Select a Size

About This Item

vapor density

Quality Level

vapor pressure

assay

autoignition temp.

expl. lim.

refractive index

bp

mp

solubility

density

functional group

SMILES string

InChI

InChI key

General description

Application

Still not finding the right product?

Safety Information

pictograms

signalword

hcodes

pcodes

Hazard Classifications

Storage Class

flash_point_f

flash_point_c

ppe

Regulatory Information

Documentation

Certificates of Analysis (COA)

Already Own This Product?

Peer Reviewed Papers

Global Trade Item Number