Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubilities of cinnamic acid, phenoxyacetic acid and 4-methoxyphenylacetic acid in supercritical carbon dioxide

Chen, Y.-P.[Yan-Ping], Chen, Y. M.[Yen Ming], Tang, M.[Muoi]
Fluid Phase Equilib. 2009, 275, 1, 33-38
ABSTRACT
The solid solubilities of cinnamic acid, phenoxyacetic acid and 4-methoxyphenylacetic acid in supercritical carbon dioxide were measured using a semi-flow apparatus. The experiments were taken at 308.2, 318.2 and 328.2 K. The pressure range was from 11 to 24MPa. These data were confirmed as equilibrium solid solubilities based on a plug flow mass transfer model. The solid solubilities were further correlated using the equations of state or semi-empirical models. The correlation results are satisfactory with optimally fitted binary interaction parameters in the Peng Robinson equation of state.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C9H8O2 3-phenyl-2-propenoic acid
3 C8H8O3 phenoxyacetic acid
4 C9H10O3 (4-methoxyphenyl)ethanoic acid
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 - 2 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 2
  • UV-vis Spectrometer
  • 19
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 3
  • UV-vis Spectrometer
  • 22
  • POMD
  • 4
  • 1
  • Mole fraction - 1 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 4
  • UV-vis Spectrometer
  • 22