Densimetric Studies of Binary Solutions Involving H2O or D2O as a Solute in Dimethylsulfoxide at Temperatures from (293.15 to 328.15) K and Atmospheric Pressure

摘要: Densities of H2O and D2O solutions in dimethylsulfoxide, with solute mole fractions ranging up to 0.037, were measured an uncertainty 1.5×10−5 g⋅cm−3 at eight temperatures between 293.15 328.15 K (with a step 5 K) under atmospheric pressure using sealed vibrating-tube densimeter. Apparent molar volumes isobaric expansibilities (down infinite dilution) water isotopologues, as well excess both solutes whole, calculated. The temperature-dependent behavior H2O→D2O isotope effects on the studied volumetric characteristics was interpreted by taking into account structural related interaction peculiarities dissolving medium question.