What is standard potential of Hg/HgO electrode?

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Javier Ernesto Vilaso Cadre

The standard potential for the Hg/HgO, KOH (1 M KOH) is 0.0983 V vs SHE.

Article Enhancing Accuracy in Alkaline Water Electrolysis Studies: I...

Article Accurate Potentials of Hg/HgO Electrodes: Practical Paramete...

This is even the value reported by some manufacturers on their product.

Chang Yan

We think that small numerical differences do not have much effect on the experiment.

We usually use 0.098 V in the equation(25℃).

If you want to see more about this ,you can read this article.

DOI:10.1021/acscatal.2c05655