PHYSICOCHEMICAL PROPERTIES AND INTERNAL STRUCTURES OF DIMETHYL SULFOXIDE-1-PROPANOL LIQUID-MIXTURES

The H-1-NMR spectra of liquid binary mixtures of dimethyl sulfoxide (D MSO) and 1-propanol (PrOH), were recorded at 298 K over almost the who le range of the mixed solvent compositions. From these data were found the values of the spectral parameter, Delta delta(DMSO-PrOH). The den sities (d(12)) and viscosities (eta(12)) of the mixed solvent were mea sured at 298.15 K, as well as the relative permittivities (epsilon(12) ) at 293.15 K, 298.15 K and 303.15 K. From all these data, the molar v olumes (V-12) and their deviations from ideality were calculated. Addi tionally, the temperature coefficients of relative permittivity, alpha (12), were Found. These structural parameters of functions of concentr ation suggest the formation of stable DMSO-PrOH, DMSO-2PrOH and DMSO-3 PrOH type complexes.