Electrochemical determinations of the chemical diffusion coefficient and non-stoichiometry in AgCl
Abstract Measurements were made of the electronic conductivities, σ e and σ h , of AgCl as a function of P Cl 2 and of the chemical diffusion coefficient of n-type and p-type AgCl, respectively, in the temperature range of 360–440°C by means of the improved dc polarization technique. The deviation from stoichiometry, δ, in the formula Ag 1+δ Cl was calculated from the measured electronic conductivities and chemical diffusion coefficients. It was found that δ ranges from -10 −4 to 10 −6 according to P Cl 2 . Based on the determined δ values, the imperfection equilibrium in AgCl are discussed.