Viscometric studies of molecular interactions in ternary liquid mixtures of ethane-1, 2-diol with some polar and non-polar solvents

Abstract

Densities and viscosities of ternary liquid mixtures of ethane- 1, 2-diol with some polar (acetone and methyl ethyl ketone) and non-polar(benzene, toluene, carbon tetrachloride) solvents have been measured as a function of the composition at a constant temperature 298.15 K. From the density and viscosity data the excess thermodynamic properties, viz., the excess molar volume (<i>V</i>^E),<i> </i>the excess viscosity(<i>η</i>^E) and the excess Gibbs free energy of activation of flow (Δ<i>G</i>^≠E)<i>, </i>have been calculated. On the basis of the values of excess thermodynamic properties and that of the parameter <i>d </i>(in Grunberg and

Nissan equation) the results have been discussed in regard to the nature and strength of molecular interactions between the mixing components.