Precise conductimetric studies on aqueous solutions of 2 : 2 electrolytes. Part 3.—Detailed study of individual electrolytes

Abstract

This paper reports precise conductance values for dilute (< 4 × 10^–3 mol dm^–3) aqueous solutions of twenty-three 2:2 salts at 25 °C. Alkaline earth metal sulphates, thiosulphates, dithionates, tetrathionates, ethyl-, n-propyl-, n-butyl-disulphonates and acetylenedicarboxylates were studied. The results are analysed by means of the Lee–Wheaton conductance equation in terms of the limiting molar conductivity, Λ₀, the association constant, K_A, and the association distance, R. The interpretation of these parameters is discussed and the values compared with previous work on these and similar systems.