Potassium cobaltinitrite
Encyclopedia
Potassium cobaltinitrite, IUPAC name
IUPAC nomenclature
A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry ....

 potassium hexanitritocobaltate(III), is a coordination compound with the formula K3[Co(NO2)6]. The anion of this yellow-coloured salt consists of a cobalt(III) center bound to six nitrito ligands. It is insoluble in water and is precipitated as yellow solids.

It was first made in 1848 by N. W. Fischer in Breslau and it is used as a yellow pigment called Aureolin
Aureolin
Aureolin is a pigment used in oil and watercolor painting. Its color index name is PY40 . It was first made in 1848 by N. W. Fischer in Breslau and its chemical composition is potassium cobaltinitrite.Aureolin is rated as permanent in oils but darkens and fades easily in watercolors...

.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK