Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Diffusion coefficients of 2-fluoroanisole, 2-bromoanisole, allylbenzene and 1,3-divinylbenzene at infinite dilution in supercritical carbon dioxide

Suarez-Iglesias, O.[Octavio], Medina, I.[Ignacio], Pizarro, C.[Consuelo], Bueno, J. L.[Julio L.]
Fluid Phase Equilib. 2007, 260, 2, 279-286
ABSTRACT
The Taylor Aris chromatographic technique was employed for the determination of diffusion coefficients of 2-fluoroanisole, 2-bromoanisole, allylbenzene and 1,3-divinylbenzene at infinite dilution in supercritical carbon dioxide from 313.16 to 333.16K and pressures between 15 and 35MPa. As expected, the diffusivities rise when temperature increases and pressure decreases. Numerous predictive equations are compared with experimental data: Lai Tan, Liu Ruckenstein cluster formula, Woerlee, Hippler Schubert Troe, Catchpole King, Eaton Akgerman, He, He Yu, Liu Silva Macedo, Funazukuri and coworkers, Dariva Coelho Oliveira, Zhu Lu Zhou Wang Shi and the Liu Ruckenstein RHS formula. The equations of He, He Yu and Catchpole King are the best of all, but cannot be used in the whole range of temperatures and solvent densities.
Compounds
# Formula Name
1 C7H7FO 2-fluoroanisole
2 C7H7BrO 1-bromo-2-methoxybenzene
3 C9H10 2-propenylbenzene
4 C10H10 1,3-diethenylbenzene
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
  • 5
  • 1
  • Binary diffusion coefficient, m2/s ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Taylor dispersion method
  • 15
  • POMD
  • 5
  • 2
  • Binary diffusion coefficient, m2/s ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Taylor dispersion method
  • 15
  • POMD
  • 5
  • 3
  • Binary diffusion coefficient, m2/s ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Taylor dispersion method
  • 15
  • POMD
  • 4
  • 5
  • Binary diffusion coefficient, m2/s ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 4; Liquid
  • Liquid
  • Taylor dispersion method
  • 15