8603. Sodium Cobaltinitrite

Nomenclature

CAS number: 13600-98-1
Trisodium (OC-6-11)-hexakis(nitrito-κN)cobaltate(3); sodium hexanitrocobaltate(III).
CoN6Na3O12; mol wt 403.94.
Co 14.59%, N 20.81%, Na 17.07%, O 47.53%.
Na3Co(NO2)6.

Properties

Yellow to brownish-yellow, cryst powder. Very sol in water, slightly in alc. Dec by mineral acids, but unaffected by dil acetic or similar organic acids. The aq soln dec gradually but if a few drops of acetic acid are added it may be kept for about 3 months.

Use

For the detection of potassium with which it forms a slightly sol compd.