Densities and thermochemical properties of dimethylsulfone in dimethylsulfoxide and dimethylsulfoxide/water equimolar mixture

Solution enthalpies of DMSO2 in the above mentioned solvents and the enthalpies of transfer of DMSO2 from water to DMSO and DMSO/water mixture have been calculated. The obtained results confirm that the endothermal process of sulfone crystalline lattice decomposition predominates during the dissolution of sulfones. With the transfer of DMSO2 from water to DMSO and mixed solvent the endothermic increase of transfer enthalpies takes place.