Das Gleichgewicht des Cu2+−Cu+−Cu-systems in konzentrierten Perchloratlösungen

The equilibrium of the reaction Cu²⁺+Cu?2 Cu⁺ has been investigated in cone. solutions of Ca(ClO₄)₂. The apparent equilibrium constants of this reaction and the formal potentials of the Cu²⁺/Cu⁺, Cu²⁺/Cu and Cu⁺/Cu redox systems were determined. From these data the hydration numbers of the Cu²⁺ and Cu⁺ ions were estimated and the scheme of the reaction studied was proposed and discussed. In addition the equilibrium constants of the reaction Cu²⁺+Cu(Hg)?2 Cu⁺ were calculated and discussed.