Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility and density measurements of palmitic acid in supercritical carbon dioxide + alcohol mixtures

Brandt, L.[Lars], Elizalde-Solis, O.[Octavio], Galicia-Luna, L. A.[Luis A.], Gmehling, J.[Jurgen]
Fluid Phase Equilib. 2010, 289, 1, 72-79
ABSTRACT
Solubility data of palmitic acid (hexadecanoic acid) in supercritical carbon dioxide were measured in the pressure range from 10 to 25MPa at temperatures of 313 and 318 K. Densities for this binary mixture in the homogeneous phase and at saturation conditions were measured in the same range of temperature. The influence of 3 and 6 mol% ethanol and 2-propanol as co-solvent on the solubility and density data for the CO2 + palmitic acid mixture was also determined at 313 K. Measurements were carried out in a static-synthetic sapphire cell coupled to a vibrating-tube densitometer. The self-consistency of the data was tested according to the density-based models proposed by Mendez-Santiago and Teja.
Compounds
# Formula Name
1 C16H32O2 hexadecanoic acid
2 CO2 carbon dioxide
3 C2H6O ethanol
4 C3H8O propan-2-ol
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
  • Mole fraction - 1 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Crystal - 1
  • Synthetic Method
  • 11
  • POMD
  • 1
  • 2
  • Mass density, kg/m3 ; Gas
  • Temperature, K; Gas
  • Mole fraction - 1; Gas
  • Pressure, kPa; Gas
  • Gas
  • Vibrating tube method
  • 147
  • POMD
  • 1
  • 3
  • 2
  • Mole fraction - 1 ; Gas
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid
  • Synthetic Method
  • 11
  • POMD
  • 1
  • 3
  • 2
  • Mass density, kg/m3 ; Gas
  • Mole fraction - 3; Gas
  • Mole fraction - 1; Gas
  • Pressure, kPa; Gas
  • Temperature, K; Gas
  • Gas
  • Vibrating tube method
  • 166
  • POMD
  • 1
  • 4
  • 2
  • Mole fraction - 1 ; Gas
  • Mole fraction - 4; Liquid
  • Pressure, kPa; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid
  • Synthetic Method
  • 9
  • POMD
  • 1
  • 4
  • 2
  • Mass density, kg/m3 ; Gas
  • Mole fraction - 4; Gas
  • Mole fraction - 1; Gas
  • Pressure, kPa; Gas
  • Temperature, K; Gas
  • Gas
  • Vibrating tube method
  • 149