Electrolytes, aluminum bismuth

The electrolyte in the measurements of the thermodynamic properties of bismuth sele-nide and telluride and of antimony telluride was the easily melted mixture of anhydrous zinc chloride (analytic purity) with sodium and potassium chlorides (chemical purity grade). The melting point of this mixture was Tmp — 208 C. The thermodynamic properties of antimony selenide were determined using a mixture of aluminum chloride (distilled twice in vacuum) and sodium chloride (chemical purity grade). The meltii point of this mixture was Tmp = 150-155°C. 

A remedy could be achieved by a decrease in the zinc solubility in the electrolyte or by suppression of dendrite formation oxides of cadmium, lead, or bismuth, as well as calcium hydroxide or aluminum hydroxide, have been added to the zinc electrode or the electrolyte for this purpose, but not with long-lasting effectiveness. 

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