4665. Heptoxime

Nomenclature

CAS number: 530-97-2
1,2-Cycloheptanedione dioxime.
C7H12N2O2; mol wt 156.18.
C 53.83%, H 7.74%, N 17.94%, O 20.49%.

Description and references

Prepn from cycloheptanone: Vander et al., J. Org. Chem. 14, 836 (1949); Belcher et al., J. Chem. Soc. 1958, 2743. Review: Banks, Nicholas, USAEC ISC-737 (1956).

Chemical structure

Properties

Crystals from benzene, mp 182°. pK1: 10.65 ± 0.2; pK2: 12.21 ±0.2.

Derivative

Monohydrate.

Properties

Crystals from water, mp 179-180°.

Use

As reagent in quantitative determination of nickel.