Dissociation constants of KSO₄^- from 10°-50°C

A cell without liquid junction was used to obtain dissociation constants for the reaction: KSO₄⁻ = K⁺ +SO₄²⁻. At 10°, 25°, 38° and 50°C, values for K_{diss KSO4}⁻ are, respectively, 0.19₅, 0.14₂, 0.11₇, and 0.09₅. At 25°C, , and  values for the KSO₄⁻ ion are −245.96 and −274.02 kcal mole⁻¹, and S° is +42.3 cal mole⁻¹ deg⁻¹.