Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Solubility Investigations in the (NH4)2C2O4-NH4VO3-H2O System from 313.15 to 363.15 K

Wang, Shaona, Guo, Xuemei, Du, Hao, Zheng, Shili, Liu, Biao, Zhang, Yi
J. Chem. Eng. Data 2017, 62, 10, 3313-3318
ABSTRACT
The solubility of (NH4)2C2O4-NH4VO3-H2O system has been measured over a temperature range 313.15 K to 363.15 K. On the basis of the results, a solubility diagram has been drawn. Additionally, the densities of the solutions have been measured. From analysis of the solubility data, a separation method for NH4VO3 from (NH4)2C2O4-NH4VO3-H2O system was proposed, involving cooling and salting-out crystallization from (NH4)2C2O4 solution.
Compounds
# Formula Name
1 C2H8N2O4 ammonium oxalate
2 H4NO3V ammonium vanadate
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
  • 3
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Molality, mol/kg - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 64
  • POMD
  • 1
  • 3
  • 2
  • Molality, mol/kg - 2 ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • titration
  • 59
  • POMD
  • 1
  • 3
  • 2
  • Molality, mol/kg - 2 ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • titration
  • 6
  • POMD
  • 3
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 6
  • POMD
  • 3
  • 2
  • Molality, mol/kg - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • titration
  • 6
  • POMD
  • 1
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 6
  • POMD
  • 1
  • 3
  • Molality, mol/kg - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • titration
  • 6