Excess molar volumes and viscosities of binary mixtures of 1,2-diethoxyethane with chloroalkanes at 298.15 K

Excess molar volumes (V-m(E)) and viscosities (eta) of the binary mixtures of 1,2-diethoxyethane with di-, tri- and tetrachloromethane have been measu red at 298.15 K and atmospheric pressure over the entire mole fraction rang e. The deviations in viscosities (Delta ln eta) and excess energies of acti vation (DeltaG*(E)) for viscous flow have been calculated from the experime ntal data. The Prigogine-Flory-Patterson (PFP) model has been used to calcu late V-m(E), and the results have been compared with experimental data. The Bloomfield and Dewan model has been used to calculate viscosity coefficien ts and these have also been compared with experimental data for the three m ixtures. The results have been discussed in terms of dipole-dipole interact ions between 1,2-diethoxyethane and chloroalkanes and their magnitudes decr easing with the dipole character of the molecules. A short comparative stud y with results for mixtures with polyethers and chloroalkanes is also descr ibed.