Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermodynamic properties of caesium manganese phosphate CsMnPO4

Korchemkin, I. V., Petkov, V. I., Markin, A. V., Smirnova, N. N., Kovalsky, A. M., Efimov, N. N., Novotortsev, V. M.
J. Chem. Thermodyn. 2014, 78, 114-119
ABSTRACT
The heat capacity measurements of the crystalline phosphate CsMnPO4 with a b-tridymite structure were performed between T = (5 and 650) K. Phase transitions were found at temperatures (6.9 and 127) K. They correspond to the order disorder transition and the transition between monoclinic and orthorhombic modifications of CsMnPO4, respectively. Thermodynamic functions Cop ;m=R; DT 0Ho m=RT; DT 0So m=R and Uo m=R were calculated over the range of T = (0 to 650) K from experimental values. The temperature dependence of the magnetic susceptibility of CsMnPO4 crystalline phosphate was studied over the temperature range from (2 to 300) K.
Compounds
# Formula Name
1 CsMnO4P cesium manganese(II) phosphate
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Triple point temperature, K ; Crystal 3
  • Crystal 3
  • Crystal 2
  • Gas
  • Adiabatic calorimetry
  • 1
  • POMD
  • 1
  • Triple point temperature, K ; Crystal 2
  • Crystal 2
  • Crystal 1
  • Gas
  • Adiabatic calorimetry
  • 1
  • POMD
  • 1
  • Molar enthalpy of transition or fusion, kJ/mol ; Crystal 3
  • Crystal 3
  • Crystal 2
  • Gas
  • Adiabatic calorimetry
  • 1
  • POMD
  • 1
  • Molar enthalpy of transition or fusion, kJ/mol ; Crystal 2
  • Crystal 2
  • Crystal 1
  • Gas
  • Adiabatic calorimetry
  • 1
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal 3
  • Temperature, K; Crystal 3
  • Pressure, kPa; Crystal 3
  • Crystal 3
  • Vacuum adiabatic calorimetry
  • 7
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal 2
  • Temperature, K; Crystal 2
  • Pressure, kPa; Crystal 2
  • Crystal 2
  • Vacuum adiabatic calorimetry
  • 87
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal 1
  • Temperature, K; Crystal 1
  • Pressure, kPa; Crystal 1
  • Crystal 1
  • Vacuum adiabatic calorimetry
  • 87
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal 1
  • Temperature, K; Crystal 1
  • Pressure, kPa; Crystal 1
  • Crystal 1
  • Small sample (50 mg) DSC
  • 129
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal 3
  • Temperature, K; Crystal 3
  • Pressure, kPa; Crystal 3
  • Crystal 3
  • Vacuum adiabatic calorimetry
  • 3
  • POMD
  • 1
  • Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 3
  • Temperature, K; Crystal 3
  • Pressure, kPa; Crystal 3
  • Crystal 3
  • Vacuum adiabatic calorimetry
  • 3
  • POMD
  • 1
  • Molar entropy, J/K/mol ; Crystal 3
  • Temperature, K; Crystal 3
  • Pressure, kPa; Crystal 3
  • Crystal 3
  • Vacuum adiabatic calorimetry
  • 3
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal 2
  • Temperature, K; Crystal 2
  • Pressure, kPa; Crystal 2
  • Crystal 2
  • Vacuum adiabatic calorimetry
  • 21
  • POMD
  • 1
  • Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 2
  • Temperature, K; Crystal 2
  • Pressure, kPa; Crystal 2
  • Crystal 2
  • Vacuum adiabatic calorimetry
  • 21
  • POMD
  • 1
  • Molar entropy, J/K/mol ; Crystal 2
  • Temperature, K; Crystal 2
  • Pressure, kPa; Crystal 2
  • Crystal 2
  • Vacuum adiabatic calorimetry
  • 21
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal 1
  • Temperature, K; Crystal 1
  • Pressure, kPa; Crystal 1
  • Crystal 1
  • Vacuum adiabatic calorimetry
  • 24
  • POMD
  • 1
  • Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 1
  • Temperature, K; Crystal 1
  • Pressure, kPa; Crystal 1
  • Crystal 1
  • Vacuum adiabatic calorimetry
  • 24
  • POMD
  • 1
  • Molar entropy, J/K/mol ; Crystal 1
  • Temperature, K; Crystal 1
  • Pressure, kPa; Crystal 1
  • Crystal 1
  • Vacuum adiabatic calorimetry
  • 24
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal 1
  • Temperature, K; Crystal 1
  • Pressure, kPa; Crystal 1
  • Crystal 1
  • Small sample (50 mg) DSC
  • 31
  • POMD
  • 1
  • Molar enthalpy function {Hm(T)-Hm(0)}/T, J/K/mol ; Crystal 1
  • Temperature, K; Crystal 1
  • Pressure, kPa; Crystal 1
  • Crystal 1
  • Small sample (50 mg) DSC
  • 31
  • POMD
  • 1
  • Molar entropy, J/K/mol ; Crystal 1
  • Temperature, K; Crystal 1
  • Pressure, kPa; Crystal 1
  • Crystal 1
  • Small sample (50 mg) DSC
  • 31