PARTIAL MOLAL VOLUME OF DMSO AND ME2CO IN THE MIXTURE OF WATER AND T-BUTYL ALCOHOL (TBA) AT 278.15, 288.15 AND 298.15-K

Volume measurement can be used in the evaluation of the molecular interaction in solution. The apparent molal volumes V(a) of DMSO and Me2CO in the concentration range 0.2-1.4 mol per kg of solvent in mixed solvents of TBA and water were calculated from density data. The apparent molal volume of DMSO and Me2CO at infinite dilution V(o)BAR was determined by extrapolation. The variation of V(o)BAR with the composition of binary mixed solvent was indicated in plots. The contribution of molecular interaction and structure to solution volumes was discussed.Chemistry, AnalyticalChemistry, PhysicalSCI(E)1