Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Freezing point depression in the ternary ZnSO4-H2SO4-H2O system

Vielma, T., Salminen, J., Lassi, U.
J. Chem. Thermodyn. 2019, 132, 276-280
ABSTRACT
Freezing points in the ternary ZnSO4-H2SO4-H2O system were measured from (0.25 to 2.0) mol kg-1 ZnSO4 and (0.25 to 2.0) mol kg-1 H2SO4. The experimental data was compared with predictions made with a multi-component Pitzer model and Zdanovskii's mixing rule. Good agreement between measured and predicted results was achieved.
Compounds
# Formula Name
1 H2O4S sulfuric acid
2 O4SZn zinc sulfate
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
  • 1
  • 2
  • 3
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Molality, mol/kg - 2; Liquid
  • Molality, mol/kg - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 3
  • Large-sample thermal analysis
  • 23
  • POMD
  • 1
  • 3
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Molality, mol/kg - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 3
  • Large-sample thermal analysis
  • 5