Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Experimental solid-liquid equilibria of the ternary system Co(NO3)2 + Mn(NO3)2 + H2O at 20 .deg.C, 0 .deg.C and -15 .deg.C

Maous, Jaafar, Kaddami, Mohammed
Fluid Phase Equilib. 2019, 489, 16-22
ABSTRACT
The solid-liquid equilibrium (SLE) phase diagram for the ternary systems of (water + cobalt nitrate + manganese nitrate) was experimentally determined via a method based on conductivity measurements under atmospheric pressure. Three isotherms were established at 20 .deg.C, 0 .deg.C and -15 .deg.C. The characterization of solid phases formed in the three isotherms was conducted using atomic absorption spectroscopy (AAS) and X-ray diffraction (XRD), and was confirmed using chemical analysis. Three stable solid phases were identified in these isotherms are: ice, manganese nitrate hexahydrate Mn(NO3)2*6H2O and Cobalt nitrate hexahydrate Co(NO3)2*6H2O.
Compounds
# Formula Name
1 MnN2O6 manganese nitrate
2 CoN2O6 cobalt(II) 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
  • 1
  • 2
  • 3
  • Mass fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • Conductivity measurement method
  • 35
  • POMD
  • 1
  • 2
  • 3
  • Mass fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 2
  • Conductivity measurement method
  • 23
  • POMD
  • 1
  • 2
  • 3
  • Mass fraction - 2 ; Liquid
  • Mass fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Crystal - 3
  • Conductivity measurement method
  • 9
  • POMD
  • 2
  • 3
  • Mass fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • Conductivity measurement method
  • 3
  • POMD
  • 2
  • 3
  • Mass fraction - 2 ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Crystal - 3
  • Conductivity measurement method
  • 1
  • POMD
  • 1
  • 3
  • Mass fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 2
  • Conductivity measurement method
  • 3
  • POMD
  • 1
  • 3
  • Mass fraction - 1 ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Crystal - 3
  • Conductivity measurement method
  • 1