TEMPERATURE-DEPENDENT LIMITING PARTIAL MOLAR VOLUMES OF POTASSIUM ALUMINIUM SULPHATE IN DIMETHYL SULPHOXIDE–WATER MIXTURES
Authors: Vishwanath Jadhav Aniket
DOI: 10.5281/zenodo.17464000
Published: October 2025
Abstract
<p><em>Densities of potassium aluminium sulphate have been measured in dimethyl sulphoxide (DMSO) + water, containing 0, 5, 10, 15, and 20 mass percent of DMSO, at different concentration and at 298.15, 303.15, 308.15 and 313.15 K. From the densities, apparent molar volumes have been derived. The apparent molar volume data have been analyzed using Masson equation. The limiting molar volumes, <sub>v</sub>ф<sup>0</sup>, and S<sub>v</sub><sup>* </sup>slop are interpreted in terms of solute-solvent and solute-solute interactions respectively. The <sub>v</sub>ф<sup>0 </sup>values vary with temperature as power series of temperature. Finally, the structure making/ breaking capacities of salts have been inferred from the Hepler’s criterion</em></p>
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