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

Solubility of p-Nitrobenzoic Acid in Supercritical Carbon Dioxide with and without Cosolvents

Tian, G.-H.[Guo-Hua], Jin, J.-s.[Jun-su], Li, Q.[Qunsheng], Zhang, Z.-t.[Ze-ting]
J. Chem. Eng. Data 2006, 51, 2, 430-433
ABSTRACT
The solubilities of p-nitrobenzoic acid in supercritical carbon dioxide and carbon dioxide + cosolvents were determined at (308, 318, and 328) K and over the pressure range from (8.0 to 21.0) MPa. The effect of cosolvents, cyclohexane, ethanol, cyclohexane + acetone (equal-molar mixture), and acetone on the solubility of p-nitrobenzoic acid was studied at a mole fraction of 3.0 % (cosolvents in supercritical mixtures). The solubility data in supercritical carbon dioxide in the absence and presence of cosolvents were correlated by the equations proposed by Mendez- Santiago and Teja with satisfactory agreement, respectively.
Compounds
# Formula Name
1 C7H5NO4 4-nitrobenzoic acid
2 C6H12 cyclohexane
3 C2H6O ethanol
4 C3H6O acetone
5 CO2 carbon dioxide
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
  • 5
  • 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 - 1
  • depressurized gas volume and solute mass
  • 15
  • POMD
  • 1
  • 2
  • 5
  • Mole fraction - 1 ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 2; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 1
  • depressurized gas volume and solute mass
  • 5
  • POMD
  • 1
  • 3
  • 5
  • Mole fraction - 1 ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 3; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 1
  • depressurized gas volume and solute mass
  • 5
  • POMD
  • 1
  • 4
  • 5
  • Mole fraction - 1 ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 4; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 1
  • depressurized gas volume and solute mass
  • 5