Title: free charge density on the interface
Long Title: IUPAC Gold Book - free charge density on the interface
DOI: 10.1351/goldbook.F02513
Status: current

Definition
The physical charge density believed to occur on either side of the electrical double-layer.

Related Terms
- charge density: https://goldbook.iupac.org//terms/view/C00988
- electrical double-layer: https://goldbook.iupac.org//terms/view/I03084

Source
- PAC, 1974, 37, 499. 'Electrochemical nomenclature' on page 508 (https://doi.org/10.1351/pac197437040499)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/F02513/html
- json: https://goldbook.iupac.org/terms/view/F02513/json
- xml: https://goldbook.iupac.org/terms/view/F02513/xml

Citation: Citation: 'free charge density on the interface' 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.F02513
License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms.
Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .
Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.
Accessed: 2026-06-22T10:23:17+00:00