Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

New device for measuring the solubility of inorganic salts in liquid ammonia

Mesones, J.[Javier], Altamash, T.[Tausif], Perez, E.[Eduardo], Salavera, D.[Daniel], Coronas, A.[Alberto]
Fluid Phase Equilib. 2013, 355, 46-51
ABSTRACT
A variable-volume cell was designed, built and validated to measure the solubility of salts in liquid ammonia, using a polythermal method at high pressure. The apparatus is based on a cell made of stainless steel and fitted with a sapphire window to allow the solubility process to be visually controlled. The solubility of three systems was measured: lithium nitrate in water at atmospheric pressure, lithium nitrate in ammonia at 20 bar and sodium thiocyanate in ammonia, also at 20 bar. An image processing treatment was also tested as a new procedure for detecting the solubility temperature.
Compounds
# Formula Name
1 H2O water
2 LiNO3 lithium nitrate
3 H3N ammonia
4 CNNaS sodium thiocyanate
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
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • VISOBS
  • 3
  • POMD
  • 1
  • 2
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • imiage processing methods
  • 4
  • POMD
  • 1
  • 2
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • VISOBS
  • 5
  • POMD
  • 1
  • 2
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal of intercomponent compound 1
  • imiage processing methods
  • 3
  • POMD
  • 3
  • 2
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • VISOBS
  • 14
  • POMD
  • 4
  • 3
  • Solid-liquid equilibrium temperature, K ; Liquid
  • Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 4
  • VISOBS
  • 13