Measurements of the dielectric permittivity and loss at 20°at various wavelengths in the microwave region are reported for mixtures containing 1,1,1-trichloroethane, benzene, and o-dichlorobenzene. These data are fitted to a microscopic molecular model which assumes that the dielectric behavior is a superposition of Debye processes.The model parameters are interpreted in terms of molecular and liquid structure. The effect of long range dipole-dipole forces on the static and dynamic dielectric behavior is considered in light of existing theories of the internal field. Boiling point diagrams and heats of mixing are reported for this system in order to check for the existence of strong specific short range forces.
Messungen von Dielektrizitätskonstanten und dielektrischen Verlusten bei 29°C bei verschiedenen Wellenlängen im Mikrowellenbereich werden vorgenommen und Siedepunktsdiagramme und Mischungswärmen bestimmt.
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