Resolution of the Conductivity Dilemma in Liquid Solutions of Alkali Metals in Alkali Halides

Abstract
Nuclear magnetic resonance measurements are reported for liquid Na-NaBr, Cs-CsCl, and Cs-CsI solutions containing less than 10 mole% metal. Correlation of the resonance shifts, relaxation rates, and de electrical conductivity shows that the electronic mobility is independent of concentration in Na-NaBr, in sharp contrast with the cesium solutions. The results provide an explanation for the apparently anomalous electronic conductivity observed in liquid-sodium-sodium-halide solutions.