Solubility studies in aqueous media: I. Solubility product of silver permanganate and standard electrode potentials of silver—silver permanganate electrode in aqueous media

The solubility and solubility product of silver permanganate in water have been determined at the temperatures ranging from 15 to 35°C over 5°C intervals in the presence of an added electrolyte, sodium perchlorate. The solubility of silver permanganate ranges from 0.966 x 10^?5 mol 1^?1 at 15°C to 1.420x10^?5 moll^?1 at 35°C and the corresponding solubility product 0.933 x 10^?10 mol² 1^?2 at 15°C to 2.017 x 10^?10 mol² 1^?2 at 35°C. The standard potentials of the Ag(s)/AgMnO₄(s)/ MnO^?₄ electrode have been calculated at these temperatures. The mean activity coefficients of silver permanganate at various rounded molarities of sodium perchlorate solutions, and the standard thermodynamic quantities for the process AgMnO₄(s)→Ag⁺ (aq)+MnO^?₄(aq) have been calculated at these temperatures.