Merck
All Photos(2)

539996

Sigma-Aldrich

Acetic anhydride

99.5%

Synonym(s):
Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride
Linear Formula:
(CH3CO)2O
CAS Number:
Molecular Weight:
102.09
Beilstein:
385737
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

densidade de vapor

3.5 (vs air)

Nível de qualidade

200

pressão de vapor

10 mmHg ( 36 °C)
4 mmHg ( 20 °C)

teor

99.5%

temperatura de autoignição

629 °F

Lim. expl.

10.3 %

índice de refração

n20/D 1.390 (lit.)

pb

138-140 °C (lit.)

pf

−73 °C (lit.)

solubilidade

water: slightly soluble

densidade

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

Looking for similar products? Visit Product Comparison Guide

Descrição geral

Acetic anhydride is a carboxylic acid anhydride commonly used for the acetylation of amines and alcohols.[1] It undergoes exothermic reaction on addition of water to form acetic acid.[2] The photodecomposition of acetic anhydride has been studied over the temperature range from 60-160°C.[3] The impact of treating pine wood with acetic anhydride has been investigated to evaluate the toughness of pine wood.[4]

Aplicação

Acetic anhydride has been used in the preparation of 6-dimethylamino-2,3-naphthalenedicarboxylic anhydride.[5] It has also been used to generate acetate ions during high resolution chemical ionization mass spectrometry (CI-ToFMS) analysis.

Embalagem

25 g in glass bottle
1, 4 kg in glass bottle
18 kg in poly drum

Palavra indicadora

Danger

Classificações de perigo

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

Código de classe de armazenamento

3 - Flammable liquids

WGK

WGK 1

Ponto de fulgor (ºF)

120.2 °F - closed cup

Ponto de fulgor (ºC)

49 °C - closed cup

Equipamento de proteção individual

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service