Electrical Conductivity of Concentrated Aqueous Mixtures of HCl and KCl in a Wide Range of Compositions and Temperatures

The electrical conductivity of the HCl + KCl + H 2 O ternary system has been measured in a wide range of compositions (0 mol·dm - 3 < c HCl < 6 mol·dm - 3 and 0 mol·dm - 3 < c KCl < 1.2 mol·dm - 3 ) and temperatures (15 °C < t < 45 °C) making use of an automated station for conductometric titration based on the “electrodeless conductivity” technique. The experimental data obtained have been fitted to a polynomial in the HCl molar concentration, the KCl molar concentration, and the temperature. As a result, an empirical model enabling the interpolation of the conductivity of the chemical system under study within the limits of the variables investigated has been proposed.