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Chapter 17

Solubility Parameters: A Brief Review

The main objectives of this chapter are to provide a concise overview of the development of the solubility parameter (δ) concept, presentation of the main physico-chemical aspects concerning δ-related models in solution chemistry, a survey of the usefulness of solubility parameters in practically important areas of physical chemistry and chemical engineering, and lastly a brief report of recent theoretical efforts in this field: that is, on equation-of-state approaches, group-contribution methods, and Monte Carlo and molecular dynamics simulation methods for estimating solubility parameters. Prediction of thermodynamic properties of liquid solutions from properties of the pure constituents has come a long way since the classic studies in this field by Scatchard and Hildebrand, leading to regular solution theory in which the solubility parameter is the pivotal property. The effects of temperature and pressure upon δ will be presented, and finally, extensions to multi-dimensional solubility parameters will be indicated, where quantities are intended for application to liquid mixtures containing strongly polar (p) and/or hydrogen-bonded (h) substances. Pride of place will be given to the most widely used three-dimensional solubility parameter introduced by Hansen in 1967: δ2δ2d +δ2p+δ2h, where the subscript d indicates dispersion interactions.

Publication details


Print publication date
12 Sep 2017
Copyright year
2018
Print ISBN
978-1-78262-711-1
PDF eISBN
978-1-78801-021-4
ePub eISBN
978-1-78801-196-9