Nomenclature
CAS number: 10534-89-1
Luteocobaltic chloride; hexammino-cobalt chloride.
Cl
3CoH
18N
6; mol wt 267.48.
Cl 39.76%, Co 22.03%, H 6.78%, N 31.42%.
[Co(NH
3)
6]Cl
3.
Description and references
Prepd from CoCl2, NH4Cl, NH3 and O2: Bjerrum, McReynolds, Inorg. Synth. 2, 217 (1946).
Properties
Wine-red or brownish-orange-red, monoclinic crystals.
Sol in water; on long boiling with water, NH3 is evolved
and Co(OH)3 pptd.Use
As reagent for pyrophosphoric acid, for the estimation
of phosphate.