Complex dielectric constant of binary mixtures of polar and unpolar organic liquids at 24 GHz

Abstract

For a number of binary mixtures of nonpolar and polar solvents the complex electric susceptibility has been measured at 24 GHz. Both real and imaginary parts of the susceptibility are given as a function of the molar fraction of the polar component for the following binary systems: cyclohexane-tetrahydrofuran, cyclohexane-carbondisulfide, benzene-tetrahydrofuran, benzene-dioxane, carbontetrachloride-tetrahydrofuran, carbontetrachloride-dioxane.
It is found that the real part of the susceptibility follows a simple linear additive law over the whole concentration range. For the imaginary part no simple additive property could be found, although at low concentrations the expected linear behavior is observed.
Some of the binary mixtures investigated may be of use in esr spectroscopy at K-band frequencies.