Abstract
The recent basic studies by means of heat of solution measurement are reviewed. In this review, the solute-solvent interactions in organic non-electrolyte system under the normal pressure and temperature are mainly described. Contents are follows: 1. accuracy and standard systems, 2. the heat of solution of low molecular weight organic compounds, 3. the heat of solution of polymer liquids, 4. contribution terms in the heat of solution datum, 5. relation between direct and indirect measurements and 6. recent solution calorimeters.
