Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Mixing enthalpies of solid solutions (Cs1-x,Rbx)NO3 at T = (298.15 and 473.15) K

Jendoubi, H.[Hanen], Hellali, D.[Dalila], Zamali, H.[Hmida], Rogez, J.[Jacques]
J. Chem. Thermodyn. 2014, 79, 215-223
ABSTRACT
A previous investigation of the binary phase diagram (Cs,Rb)NO3 has confirmed the existence of two continuous solid solutions a(Cs1-x,Rbx)NO3 and b(Cs1-x,Rbx)NO3 stable in the temperature ranges T = (298 to 421) K and T = (439 to 503) K respectively. The mixing enthalpies of these solid phases, determined by a calorimetric method at T = (298.15 and 473.15) K, are presented for the first time. A positive and asymmetric deviation from ideality is observed.
Compounds
# Formula Name
1 CsNO3 cesium nitrate
2 NO3Rb rubidium nitrate
3 H2O water
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
  • 3
  • 1
  • Molar enthalpy of solution, kJ/mol ; Liquid
  • Amount concentration (molarity), mol/dm3 - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • ISOPERIBOL
  • 5
  • POMD
  • 3
  • 2
  • Molar enthalpy of solution, kJ/mol ; Liquid
  • Amount concentration (molarity), mol/dm3 - 2; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Calvet calorimetry
  • 6
  • POMD
  • 3
  • 2
  • Molar enthalpy of solution, kJ/mol ; Liquid
  • Amount concentration (molarity), mol/dm3 - 2; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • ISOPERIBOL
  • 4
  • POMD
  • 1
  • 2
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Crystal
  • Temperature, K; Crystal
  • Mole fraction - 2; Crystal
  • Pressure, kPa; Crystal
  • Crystal
  • Calvet calorimetry
  • 12