The EMF of the zinc electrode in a variety of alkaline solutions has been measured at 25°C. The total ionic strength of these solutions was carefully controlled. Departures from Nernstian behavior appear to be due to junction potentials involving the OH − ions. The concentration of the electrolyte in the reference electrode is a major contributor to this non‐Nernstian behavior. The solute species governing the EMF of the zinc electrode in these solutions is the ion.
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T. P. Dirkse (1979) studied this question.
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