The hydrogen-ion selective electrode is a standard hydrogen electrode.
2.
For this reason, standard hydrogen electrode is typically used for reference potential.
3.
The standard hydrogen electrode also uses a platinized platinum electrode due to its corrosion resistance, and other attributes.
4.
The potential of a copper copper sulfate electrode is + 0.314 volt with respect to the standard hydrogen electrode.
5.
For example, hydrogen is oxidized and protons are reduced readily at the platinum surface of a standard hydrogen electrode in aqueous solution.
6.
Liquid mercury is a part of popular secondary reference electrode ( called the calomel electrode ) in electrochemistry as an alternative to the standard hydrogen electrode.
7.
The main feature of such electrode is an absence of non-stop bubbling of molecular hydrogen through the solution as it is absolutely necessary for the standard hydrogen electrode.
8.
These half-cell potentials are defined relative to the assignment of 0 volts to the standard hydrogen electrode ( SHE ) . ( See table of standard electrode potentials ).
9.
For practical purposes, the value of the absolute electrode potential of the standard hydrogen electrode is best determined with the utility of data for an mercury ( Hg ) electrode:
10.
The numerical value for the absolute potential of the standard hydrogen electrode one would calculate under the Rockwood definition is sometimes fortuitously close to the value one would obtain under the Trasatti definition.
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