Title: Sodium Cobaltinitrite

CAS Registry Number: 13600-98-1

CAS Name: Trisodium hexakis(nitrato-N)cobaltate(3-)

Additional Names: sodium hexanitrocobaltate(III)

Molecular Formula: CoN6Na3O12

Molecular Weight: 403.94

Percent Composition: Co 14.59%, N 20.81%, Na 17.07%, O 47.53%

Line Formula: 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.