Acetaldehyde Properties, Molecular Formula, Applications - WorldOfChemicals

Acetaldehyde Properties


Molecule 3D Structure Image
4-Pregnen-20-Beta-Ol-3-One-Molecule 3D Structure
Molecule Structure Image



Acetaldehyde is one of the most important aldehydes, occurring widely in nature and being produced on a large scale industrially. It occurs naturally in coffee, bread, and ripe fruit, and is produced by plants as part of their normal metabolism. It is also produced by oxidation of ethanol and is popularly believed to be the cause of hangovers. Traditionally, acetaldehyde was mainly used as a precursor to acetic acid. In terms of condensation reactions, acetaldehyde is an important precursor to pyridine derivatives, pentaerythritol, and crotonaldehyde. Urea and acetaldehyde combine to give a useful resin. Acetic anhydride reacts with acetaldehyde to give ethylidene diacetate, a precursor to vinyl acetate, which is used to produce polyvinyl acetate.

Chemical Properties

Appearance Colourless liquid
Boiling Point 20.2 °C
CAS Number 75-07-0
ChEBI 15343
Density 0.788 g/cm3
Dipole Moment 2.7 D
EINECS Number 200-836-8
HS Code 29121200
IUPAC Name Acetaldehyde
InChI 1S/C2H4O/c1-2-3/h2H,1H3
LR Assay 20 - 25%
Lab Grade LR
Melting Point -123.5 °C
Molar Mass 44.05 g/mol
Molecular Formula C2H4O
NFPA 704 H-3,F-4,R-2,C-NA
RTECS Number LP8925000
Refractive n20/D 1.377
Related Compounds Ethylene Oxide
Solubility > 500 g/l
Synonyms Acetic Aldehyde;Ethyl Aldehyde
Viscosity ~0.215 uses cookies to ensure that we give you the best experience on our website. By using this site, you agree to our Privacy Policy and our Terms of Use. X