Features of the double complex [Ni(NH3)6]3[Fe(CN)6]2 thermal behavior

Thermal behavior of double complex [Ni(NH3)6]3[Fe(CN)6]2 in oxidative (air), inert (argon, nitrogen) and reductive (hydrogen) media has been considered. The solid and gaseous products of thermolysis have been studied. It has been found that in the air the solid oxides of metal-complexing agents are obtained with gaseous ammonia, СО2 and N2O; while gaseous NH3, HCN and N2 are formed in inert atmospheres. In the solid phase at 600 °C metals with great admixture of amorphous carbon are formed. In hydrogen atmosphere gaseous NH3, HCN and N2 are also formed, but coordinated cyano-groups are partly hydrogenated into ammonia and hydrocarbons, preferably into methane. The pure metals (Fe and Ni3Fe) are formed at the temperature greater than 800 °C.