Electrical Conductivity of Potassium Chloride

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Abstract
The electrical conductivity of potassium chloride is discussed within the framework of a four-defect model of the crystal. The four defects are mobile anion and cation vacancies and immobile divalent cation impurities and divalent cation impurity-cation vacancy complexes. The Teltow formulation of the four-defect model fails to describe precisely the measured electrical conductivity of KCl over the entire intrinsic and extrinsic range.