Description
Synonym: Ethanal
Linear Formula: CH3CHO
General description
Acetaldehyde is an industrially important solvent used as an intermediate for the synthesis of a wide range of compounds. On oxidation it forms acetic acid and ethanol on reduction. The interaction of Criegee intermediate (CH2OO) with acetaldehyde has been measured. Its effect as a neuroactive agent has been studied. Alkynylation reaction of acetaldehyde by asymmetric catalysis has been reported.
Application
Acetaldehyde may be used in the synthesis of 1,3-diamines by one-pot cross double-Mannich reaction and β-amino aldehydes by proline-catalyzed Mannich reaction.
PROPERTIES
biological source
synthetic
Pack Size
100mL
grade
ACS reagent
vapor density
1.52 (vs air)
vapor pressure
14.63 psi ( 20 °C)
Assay
≥99.5%
form
liquid
autoignition temp.
365 °F
expl. lim.
60 %
impurities
≤0.008 meq/g Titr. acid
evapn. residue
≤0.005%
refractive index
n20/D 1.332 (lit.)
bp
21 °C (lit.)
mp
−125 °C (lit.)
solubility
alcohols: soluble
water: miscible
density
0.785 g/mL at 25 °C (lit.)
storage temp.
2-8°C
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