Why do you prefer canomel electrode to hydrogen electrode
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Calomel electrode: This reference electrode consists of a mercury and mercury-chloride molecules. This electrode can be relatively easier to make and maintain compared to the SHE. ... This a widely used reference electrode because it is inexpensive and not as toxic as the Calomel electrode that contains mercury.
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They are often used interchangeably in publications, but the difference is: SHE = Standard Hydrogen Electrode. ... The RHE is Reversible Hydrogen Electrode, which is a practical hydrogen electrode whose potential depends on the pH of the solution it is used in and the pressure of Hydrogen.
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