42. Acetaldoxime

Nomenclature

CAS number: 107-29-9
Acetaldehyde oxime; aldoxime; ethylidenehydroxylamine.
C2H5NO; mol wt 59.07.
C 40.67%, H 8.53%, N 23.71%, O 27.09%.
CH3CH=NOH.

Description and references

Prepn: Dunstan, Dymond, J. Chem. Soc. 61, 470 (1892). Manuf: Donaruma, US 2763686 (1956 to du Pont).

Properties

Two crystalline modifications, mp 12° (β-form), mp 46.5° (α-form). d 0.966. bp 114.5°. nD20 1.415. Flammable. Dec by aq HCl into acetaldehyde and hydroxylamine. Very sol in water, alcohol, ether.