THERMODYNAMIC RESEARCHES OF FORMATION OF METAL OXIDES OF PLATINUM GROUP

Thermodynamic reactions of formation of oxide compounds of platinum, rhodium and palladium were analyzed. It was found that the existence of gaseous platinum oxides in the temperature range 1200-1300°K is unlikely from the point of view of thermodynamics. The most thermodynamically stable under these conditions are the oxides Rh2 O and Rh2 O3 . The existence of palladium (II) oxide in the condensed state is thermodynamically possible only up to a temperature of 1150°K. Proposed ways to further study the reduction of losses in the oxidation of NH3 .