2-METHOXYETHANOL-WATER SOLVENT SYSTEM - STATIC RELATIVE PERMITTIVITY FROM -10 TO -DEGREES-C(80)

A detailed dielectric study of 2-methoxyethanol (ME)-water (W) mixture s has been carried out as a function of temperature in the range - 10 to + 80-degrees-C and over the entire binary composition range (0 less -than-or-equal-to x less-than-or-equal-to 1). The experimental data, o btained by the heterodyne beat method at 2 MHz, were used to test some empirical relations of the type epsilon = epsilon(T), epsilon = epsil on(x) and epsilon = epsilon(T, x), in order to assess the empirical pe rformances in dielectric behaviour of these mixtures, including the ex perimental conditions which are able to modify such patterns. The data reported here for ME-W binary mixtures were useful trying to understa nd the relative discriminating ability of both components towards coop erative intermolecular interactions in the liquid state, the quantitat ive similarities and differences between the chosen pure species, the intermolecular phenomena and interactions influencing the dielectric p roperties of the mixtures and the usefulness of a qualitative descript ion of the possible formation of solvent-cosolvent complex species inv olving hydrogen-bonding, dipole-dipole and other interactions.