An investigation of the "Leak effect" in measuring dielectric constants and dielectric constants and polarizations of some binary mixtures of acetone.

The lower members of the fatty acid series are quite conductive when they are dissolved in a material, like water, which has a high dielectric constant. Thwing (1) attempted to measure the entire range of binary mixtures of acetic acid in water but encountered considerable difficulty in making oapacitance measurement because of the conductance effect. Mixtures containing less than 30% acetic acid gave the most uncertain results. These dielectric constants were measured by the bridge method whioh is suitable for conductive materials. Dielectric constants of aqueous solutions of various electrolytes have been determined largely by the resonance and the Furth (2) ellipsoid methods. [...