Potassium bis(oxalato) diaqua chromate (III) dihydrate

                        KCr(C2O4)2(H2O)2�2H2O

 

 

This is potassium bis(oxalato)chromate (III), synthesized from potassium dichromate and oxalic acid. This complex is very similar to potassium tris(oxalato)chromate (III), but its physical appearance differs quite a lot. The main difference is that here only four aqua ligands of the plain hexaaqua chromium (III) are replaced by two oxalato ligands.