A NONLINEAR CORRELATION MODEL FOR THE RELATIVE PERMITTIVITY OF TERNARY AMPHIPROTIC (SOLVENT) MIXTURES

Relative permittivities (epsilon) were determined for ternary ethane-1 ,2-diol (component 1)/2-methoxyethanol (component 2)/water (component 3) mixtures at five temperatures ranging from 5 to 25-degrees-C and ov er the mole fraction composition range 0 less-than-or-equal-to X(i) le ss-than-or-equal-to 1. The data have been fitted to a model equation t hat could be useful for predictive epsilon calculations. From the meas ured epsilon values, the excess relative permittivity epsilon(E) has b een evaluated in order to test for three-component adducts. The values of epsilon(E) have been found to be negative for all the ternary mixt ures under all the experimental conditions, which suggests a strong in teraction network through hydrogen bonding, although evidence for a di screte three-component adduct was not forthcoming.