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

Solubility of p-Methylbenzene Sulfonic Acid in Pure and Modified Supercritical Carbon Dioxide

Zhang, Z.-t.[Ze-ting], Li, W.-m.[Wen-ming], Jin, J.-s.[Jun-su], Tian, G.-H.[Guo-Hua]
J. Chem. Eng. Data 2008, 53, 2, 600-602
ABSTRACT
The solubilities of p-methylbenzene sulfonic acid in supercritical carbon dioxide were determined at (308, 318, and 328) K and in the pressure range from (8 to 21) MPa. The effects of cosolvents (ethyl acetate, ethyl acetate + ethanol (molar ratio 1:1), ethanol, and acetone) on the solubility of p-methylbenzene sulfonic acid were studied at a concentration of 1.5 mol %. The measured solubilities in supercritical carbon dioxide in the absence and presence of cosolvents were correlated using the Chrastil and modified Chrastil equation with good results, respectively.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C7H8O3S 4-methylbenzenesulfonic acid
3 C2H6O ethanol
4 C3H6O acetone
5 C4H8O2 ethyl acetate
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
  • 2
  • 1
  • 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
  • Phase equilibration
  • 15
  • POMD
  • 3
  • 2
  • 1
  • Mole fraction - 2 ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 3; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 2
  • Phase equilibration
  • 5
  • POMD
  • 2
  • 1
  • 5
  • Mole fraction - 2 ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 5; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 2
  • Phase equilibration
  • 5
  • POMD
  • 4
  • 2
  • 1
  • Mole fraction - 2 ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 4; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 2
  • Phase equilibration
  • 5