03167 IUPAC Gold Book - ion exchange 10.1351/goldbook.I03167 I03167 current 1 In surface chemistry, if the adsorption of one or several ionic species is accompanied by the simultaneous desorption (displacement) of an equivalent amount of one or more other ionic species, this process is called ion exchange. adsorption https://goldbook.iupac.org//terms/view/A00155 desorption https://goldbook.iupac.org//terms/view/D01620 PAC, 1972, 31, 577. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry' on page 585 (https://doi.org/10.1351/pac197231040577) 2 The process of exchanging ions between a solution and an ion exchanger. ion exchanger https://goldbook.iupac.org//terms/view/I03171 PAC, 1993, 65, 819. 'Nomenclature for chromatography (IUPAC Recommendations 1993)' on page 854 (https://doi.org/10.1351/pac199365040819) https://goldbook.iupac.org/terms/view/I03167/html https://goldbook.iupac.org/terms/view/I03167/json https://goldbook.iupac.org/terms/view/I03167/plain Citation: 'ion exchange' 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.I03167 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-05-09T12:05:28+00:00