Dielectric dispersion and viscosity in solutions

Previous work carried out in this laboratory has indicated the desirability of further studies of the correlation between dielectric relaxation phenomena, molecular structure and viscosity. Measurements have been carried out on solutions of the nearly spherical t-butyl chloride and methyl chloroform molecules and the long n-tetradecyl bromide molecule in two non-polar solvents, n-heptane and a viscous paraffin oil, over a temperature range 4.°C. to 60°C. The measurements were at 1.22, 3.22, 5.59, and 10.00 cms. wavelengths as well as at 1000 cycles and at optical frequencies. Values for the optical dielectric constants were corrected for the atomic polarizations using the standard method for alkyl halides since explicit data for these quantities are not available. The constants in the equations relating the dielectric constants and concentrations were plotted in the complex plane to give the expected arc plots. The distribution constants and critical wavelengths were then calculated according to the Cole and Cole method.