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

Densities of r-Tocopherol + Supercritical Carbon Dioxide Mixtures

Pecar, D.[Darja], Dolecek, V.[Valter]
J. Chem. Eng. Data 2008, 53, 4, 929-932
ABSTRACT
The densities of R-tocopherol in supercritical carbon dioxide were measured from (308.15 to 333.15) K and within the pressure range (10 to 40) MPa using a vibrating tube densimeter. The reliability of this technique has been verified in our previous work. The dependence of densities of R-tocopherol in supercritical carbon dioxide on composition, temperature, and pressure is presented in this study. Experimental data were correlated by the Peng Robinson equation of state with the Panagiotopoulos-Reid mixing rule.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C29H50O2 (+)-.alpha.-tocopherol
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
  • Mass density, kg/m3 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 2; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Vibrating tube method
  • 160