SEARCH Articles Figures Tables Activity coefficient Scatchard-Hildebrand equations Hildebrand Hildebrand Scatchard approach Hildebrand and Scatchard Hildebrand-Scatchard hypothesis Hildebrand-Scatchard solution theory Hildebrande Scatchard-Hildebrand equation Scatchard-Hildebrand theory Scatchard-Hildebrand theory solubility The Hildebrand-Scatchard Solubility Parameter Theory