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

Limiting Separation Factors and Limiting Activity Coefficients for 2-Phenylethanol and 2-Phenylethanal in Water at 100 C

Hertel, M. O.[Marcus O.], Sommer, K.[Karl]
J. Chem. Eng. Data 2005, 50, 6, 1905-1906
ABSTRACT
A recirculating Gillespie-type still was used to determine the limiting separation factor (K) for 2-phenylethanol (x) or 2-phenylethanal (x) + water (1 - x). Since the solutions are highly dilute (x < 10-5), infinite dilution is assumed. The condensed vapor and liquid samples were analyzed using UV spectroscopy. The confidence intervals are very small, and thus the method has a good reproducibility. The calculated limiting activity coefficient depends highly on the reliability of the pure components vapor pressure data.
Compounds
# Formula Name
1 H2O water
2 C8H10O 2-phenylethanol
3 C8H8O .alpha.-tolualdehyde
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
  • Activity coefficient - 2 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Differential ebulliometry
  • 1
  • POMD
  • 2
  • 1
  • Amount concentration (molarity), mol/dm3 - 2 ; Gas
  • Temperature, K; Gas
  • Mole fraction - 2; Liquid
  • Gas
  • Liquid
  • UV Spectroscopy
  • 1
  • POMD
  • 3
  • 1
  • Activity coefficient - 3 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Gas
  • Differential ebulliometry
  • 1
  • POMD
  • 3
  • 1
  • Amount concentration (molarity), mol/dm3 - 3 ; Gas
  • Temperature, K; Gas
  • Mole fraction - 3; Liquid
  • Gas
  • Liquid
  • UV Spectroscopy
  • 1