Term: liquid-liquid distribution (extraction) (partition) https://doi.org/10.1351/goldbook.L03586 Definition: The process of transferring a dissolved substance from one liquid phase to another (immiscible or partially miscible) liquid phase in contact with it. Although extraction, partition and distribution are not synonymous, extraction may replace distribution where appropriate. Related Terms: 1) extraction (http://doi.org/10.1351/goldbook.E02301). 2) partition (http://doi.org/10.1351/goldbook.P04435). Source: Orange Book, 2nd ed., p. 87 (https://media.iupac.org/publications/analytical_compendium/) Citation: 'liquid-liquid distribution (extraction) (partition)' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.L03586 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. 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.