Ionic Conductivities of Molten CuI and AgI-CuI Mixtures

Ionic conductivities σ for molten CuI and AgI-CuI mixtures were measured in the temperature ranges of approximately 580-800 and 500-850 °C, respectively. The value of σ for molten CuI in the range is smaller than that for molten CuBr and CuCl. σ for molten AgI-CuI mixtures decreases with increasing CuI-concentration. The activation energies E a for molten AgI-CuI system were determined from the analysis of temperature dependence of σ by using the by Arrhenius type equation. E a for molten AgI-CuI gradually increase with increasing CuIconcentration.