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Clear, syrupy liquid formed from the condensation of Acetaldehyde in an aqueous solution of Sodium hydroxide. Aldol is used in rubber vulcanization, perfumes, engraving, on printer's rollers, as a dyeing assistant, in synthetic polymers, as a solvent, and as a fungicide.

Synonyms and Related Terms

acetaldol; 3-hydroxybutyraldehyde; 3-hydroxybutanal; aldol adduct;

Physical and Chemical Properties

Miscible with water, ethanol and ether.

Composition CH3CH2OCH2CHO
Density 1.1098 g/ml
Molecular Weight mol. wt. = 88.11
Boiling Point 83 C


  • Combustible; moderate fire risk.
  • Acts as a sedative when ingested.

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 24
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 225

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