real potential of a species in a phase

https://doi.org/10.1351/goldbook.R05192
Defined for species B in phase β as \[\alpha _{\text{B}}^{\beta } = \mu _{\text{B}}^{\beta }\,-\,z_{\text{B}}\ F\ \psi ^{\beta }\] where \(\mu _{\text{B}}^{\beta }\) is the @[email protected] of species B in phase β, \(z_{\text{B}}\) is the @[email protected] of species B, \(F\) is the @[email protected], and \(\psi ^{\beta }\) is the @[email protected] of phase β. Since \(\psi ^{\beta }\) is zero when the charge on the phase β is zero, the real potential may be regarded as the value of the @[email protected] of the uncharged phase.
Source:
PAC, 1974, 37, 499. (Electrochemical nomenclature) on page 506 [Terms] [Paper]