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

Measurement and Correlation of ?-Bisabolol Solubility in Near-Critical Carbon Dioxide

Sovova, H.[Helena], Stateva, R. P.[Roumiana P.], Koptova, M.[Marta]
J. Chem. Eng. Data 2013, 58, 5, 1151-1155
ABSTRACT
The solubility of (-)-?-bisabolol, ((-)-6-methyl-2-(4-methyl-3-cyclohexen-1-yl)-5-hepten-2-ol), a monocyclic sesquiterpene alcohol, in sub- and supercritical CO2 was measured at the temperatures (313.2, 323.2, and 333.2) K and pressures ranging from (7 to 12.5) MPa by a dynamic method. To the best of our knowledge, there are no previous measurements of ?-bisabolol solubility in near critical CO2 reported in the literature. The solubility isotherms were in the crossover region; the maximum mole fraction of ?-bisabolol in CO2, 9*10 3, was therefore at 313.2 K and 11.5 MPa, the maximum pressure applied at this temperature. The Soave Redlich Kwong equation of state (SRK-EoS) was employed to correlate the experimental data and an acceptable agreement was obtained. Furthermore, the thermophysical properties of the solute required by the modeling were estimated and reported.
Compounds
# Formula Name
1 C15H26O (R*,R*)-.alpha.,4-dimethyl-.alpha.-(4-methyl-3-pentenyl)-3-cyclohexene-1-methanol
2 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
  • 2
  • 1
  • Mole fraction - 1 ; Gas
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Gas
  • Liquid
  • solute mass and gas volume
  • 31