Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

ABSTRACT

Density and speed of sound of the binary mixtures of ethylenediamine (EDA) with alcohols (1-hexanol, 1-octanol and 1-decanol) were measured at the temperature from 293.15 to 313.15 K and viscosity at 298.15 to 308.15 K over the entire composition range and at atmospheric pressure. Using the experimental values of density, viscosity and speed of sound, the excess molar volume, viscosity deviation, deviation in speed of sound, excess molar isentropic compressibility were calculated. These results were fitted to the Redlich-Kister type polynomial equation. The variations of these excess parameters with composition were discussed from the viewpoint of intermolecular interactions in these mixtures. The excess properties are found to be either positive or negative depending on the molecular interactions and the nature of liquid mixtures. Further, the viscosity data have been used and analyzed in terms of various semi-empirical relations.