Thermodynamic properties and phase equilibria of the potassium-indium system by electromotive force measurements

The potassium-indium system has been studied using galvanic cells with potassium beta alumina as the electrolyte. The thermodynamic properties of the liquid solution have been determined between 0 and 52 at.% potassium. There is some evidence for a very weak liquid compound near 35 at.% K, but not at 50 at.% K. Changes are proposed for the potassium-indium phase diagram, including the liquidus temperature and the existence of new compounds.