Skip to Content
MilliporeSigma

Skip To

00070

Sigma-Aldrich

Acetaldehyde

puriss. p.a., anhydrous, ≥99.5% (GC)

Synonym(s):

Ethanal

Sign Into View Organizational & Contract Pricing

Select a Size

Select a Size

Change View

About This Item

Linear Formula:
CH3CHO
CAS Number:
Molecular Weight:
44.05
Beilstein/REAXYS Number:
505984
EC Number:
MDL number:
UNSPSC Code:
12352100
eCl@ss:
39021102
PubChem Substance ID:
NACRES:
NA.21
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

biological source

synthetic

Quality Level

grade

anhydrous
puriss. p.a.

vapor density

1.52 (vs air)

vapor pressure

14.63 psi ( 20 °C)

assay

≥99.5% (GC)

form

liquid

autoignition temp.

365 °F

quality

anhydrous

expl. lim.

60 %

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Acetaldehyde is an organic colorless flammable liquid. It can be produced by hydration of acetylene and by catalytic oxidation of ethyl alcohol. It is mainly used in manufacturing acetic acid.
Mechanism of the thermal decomposition of acetaldehyde has been reported. It is a product of ethanol metabolism in the liver, binds covalently to various proteins, thereby alters the liver function and structure. The aldol condensation of acetaldehyde and heptanal in the presence of hydrotalcite-type catalysts has been described.

Application

Acetaldehyde may be used for the enzymatic synthesis of fatty acids.
It was used in the plasma polymerization for deposition of reactive aldehyde groups onto substrate, in a study to produce fibrous biomaterials with cell adhesive and also repulsive capability in biomedical applications. It was also used as calibration standard during determination of acetone, acetaldehyde, ethanol, and methanol in different human matrices, such as whole blood, vitreous humour, and urine using gas chromatography with flame ionization detection method (GC–FID).

Caution

forms easily paraldehyde

signalword

Danger

Hazard Classifications

Carc. 1B - Eye Irrit. 2 - Flam. Liq. 1 - Muta. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

-38.0 °F - closed cup

flash_point_c

-38.89 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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