Abstract
Densities of (NH4)2SO4, K2SO4 and Al2(SO4)3 have been measured in dimethylsulphoxide(DMSO) + water, containing 0,5,10,15 and 20 mass % of DMSO, at different concentrations and at 298.15, 303.15, 308.15 and 313.15 K. From these densities, apparent molar volumes have been derived. The apparent molar volume data have been analyzed using Masson equation. The limiting apparent molar volume, Vφ0, and slope, S*v, are interpreted in terms of solute-solvent and solute-solute interactions, respectively. The Vφ0 values vary with temperature as a power series of temperature. Finally, the Structure making/breaking capacities of salts have been inferred from the Hepler's criterion.
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