Potassium hexacyanochromate(III) is an

inorganic compound An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds⁠that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''. Inorgan ...

with the formula K₃ r(CN)₆ It consists of three potassium cations and r(CN)₆sup>3− anion. It is a yellow, air-stable,

paramagnetic Paramagnetism is a form of magnetism whereby some materials are weakly attracted by an externally applied magnetic field, and form internal, induced magnetic fields in the direction of the applied magnetic field. In contrast with this behavior, ...

solid. It is isomorphous with

potassium ferricyanide Potassium ferricyanide is the chemical compound with the formula K3 e(CN)6 This bright red salt contains the octahedral molecular geometry, octahedrally coordination compound, coordinated ferricyanide, e(CN)6− ion. It is soluble in wat ...

Synthesis and reactions

The salt is prepared by treating chromium(III) salts with KCN. Reduction of hexacyanochromate(III) gives the Cr(II) and Cr(0) derivatives, r(CN)₆sup>4- and r(CN)₆sup>6-, respectively.

References

{{Cyanides Potassium compounds Chromium complexes Cyanometallates Chromium(III) compounds