Issue 17, 2001

Analysis of dipolarity/polarisability parameter, π*, for a range of supercritical fluids

Abstract

The dipolarity/polarisability parameter, π*, of Kamlet and Taft can be used to characterise the solvent properties of supercritical fluids and hence its correlation to more readily available parameters is important for predictive purposes. Almost perfect correlations are demonstrated between the π* parameter and the cohesive energy density parameter, δH2, as a function of solvent type, temperature and pressure. Correlation is also observed between π* and solvent dipole moment at constant reduced density. It is shown that the Gibbs energy of dissociation data can be modelled using δH2 and π* parameters.

Article information

Article type
Paper
Submitted
14 May 2001
Accepted
28 Jun 2001
First published
30 Jul 2001

Phys. Chem. Chem. Phys., 2001,3, 3722-3726

Analysis of dipolarity/polarisability parameter, π*, for a range of supercritical fluids

A. P. Abbott, C. A. Eardley and J. E. Scheirer , Phys. Chem. Chem. Phys., 2001, 3, 3722 DOI: 10.1039/B104243M

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