Abstract
The concept of solubility parameter was originally introduced by Hildebrand and Scatchard in solution chemistry. This simple parameter, defined as the square-root of cohesive energy density, is found to be useful for the description of various phenomena reflecting solute-solvent interactions in solution. The role in solution theory and methods of estimation are briefly reviewed. The extension and application of this parameter are discussed with particular attention to the utility for solvent screening in paint technology, polymer solubility and chromatography.
