METHANOL DIOXANE BINARY-MIXTURES AND THEIR ASSUMED INTERNAL STRUCTURES

The H-1-NMR spectra of liquid binary mixtures, methanol (MeOH)-dioxane (Dx), were recorded at 298 K and the spectral parameters, DELTAdelta(M eOH-Dx) were evaluated. The dielectric permittivities (epsilon12) were measured at 293.15 K, 298.15 K, 303.15 K and 308.15 K. From literatur e values of density (d12), ViSCosity (eta12) and the measured dielectl ic permittivities the molar volumes (V12), kinematic viscosities (eta1 2/d12) and their deviations from ''ideality'', at 298.15 K, were calcu lated. Further on the temperature coefficients of dielectric permittiv ity, alpha12=(1/epsilon12).[depsilon12/d(1/T)], were evaluated. These structural parameters as functions of concentration suggest the format ion of the ''complexes'' ( sub-units) of MeOH.2Dx, MeOH.Dx and 3MeOH.2 Dx types.