STANDARD POTENTIAL OF THE SILVER-SILVER CHLORIDE ELECTRODE IN 10, 20, AND 40 WT-PERCENT ETHANOL-WATER SOLVENTS AT 25, 0, -5, AND -10-DEGREES-C

In order to facilitate the measurement of thermodynamic quantities at temperatures below 0°C in ethanol/water solvents, the standard potential of the silver-silver chloride electrode in 10, 20, and 40 wt.% ethanol has been determined at 25, 0, -5, and -10°C. Electromotive force measurements of cells of the type {Mathematical expression} were used. The potentials found at 25°C were in good agreement with earlier results. Mean activity coefficients for hydrochloric acid in the three mixed solvents were derived. © 1979 Plenum Publishing Corporation.