Low-temperature heat capacity and thermodynamic properties of PrPO4

摘要

The heat capacity of praseodymium orthophosphate PrPO4 was measured by adiabatic and relaxation calorimetric techniques at 5.12-345.54 K, and these data were utilized to calculate thermodynamic functions of PrPO4 at 6-350 K. The Gibbs free energy of PrPO4 formation Delta (f) G (0)(298.15 K) is evaluated at 1851.8 +/- 4.7 kJ mol(-1).