Voltaic cells in fused salts part iv. electrode potentials of the systems: TliT1C1 (KC1-N0C1), CuiCuCl (KC1-N0C1), CuiCuC1 2 (KC1-N0C1), Cr/Cr Cl, (KC1-NoC1), AND CrerC13 KC1-NaC1). redox potentials of the systems Pt/CuCl, CuC1 2 (KC1-NoC1), and Pt/CrC1 2 , Cr CI, (KCI-410C1)

Abstract

Using a Ag/AgC1 (KCI-NaCI) reference electrode, the standard electrode potentials of the systems TI/TICI (KCI-NaC1), Cu/CuCI (KCI-NaCI), Cu/CuCl2 (KCI-NaC1), Cr/CrC12 (KCI-NaCI), and Cr/CrCI 3 (KCI-NaCI) were measured and found to be: 0.650 volt at 680° C., and 0.250, 0.175, 0.755, and 0.423 at 700° C. respectively. The standard redox potentials of the systems Pt/CuC1 2, CuCl (KCI-NaC1), and Pt/CrC1 3, CrC12 (KCI-NaC1) were also measured at 700° C. and found to be 0.600 and 0.240 volt respectively. The effect of temperature on the electromotive forces of the above cells was measured and the heats of the cell reactions were calculated from the data.