Title: ion-pair extraction
Long Title: IUPAC Gold Book - ion-pair extraction
DOI: 10.1351/goldbook.10162
Status: current

Definition
Transfer of ions from an aqueous phase to an immiscible liquid (or solid) phase by adding an ion of complementary charge to the aqueous phase.

Note
Ion-pair extraction can also be done by adding the complementary-charge containing compound to the organic phase before extraction.

Source
- PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 520 (https://doi.org/10.1515/pac-2015-0903)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/10162/html
- json: https://goldbook.iupac.org/terms/view/10162/json
- xml: https://goldbook.iupac.org/terms/view/10162/xml

Citation: Citation: 'ion-pair extraction' 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.10162
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Accessed: 2026-07-28T17:35:48+00:00