Title: Galvani potential difference
Long Title: IUPAC Gold Book - Galvani potential difference
DOI: 10.1351/goldbook.G02574
Status: current

Definition
An electric potential difference between points in the bulk of two phases. It is measurable only when the two phases have identical composition (e.g. two copper wires). It is the difference of inner electric potentials in two phases. Symbol: \(\Delta _{\unicode[Times]{x3B1} }^{\unicode[Times]{x3B2} }\phi \).

Related Terms
- electric potential: https://goldbook.iupac.org//terms/view/E01935
- inner electric potentials: https://goldbook.iupac.org//terms/view/I03046

Source
- Green Book, 2nd ed., p. 59 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/G02574/html
- json: https://goldbook.iupac.org/terms/view/G02574/json
- xml: https://goldbook.iupac.org/terms/view/G02574/xml

Citation: Citation: 'Galvani potential difference' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.G02574
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Accessed: 2026-07-14T20:18:08+00:00