Title: substoichiometric extraction
Long Title: IUPAC Gold Book - substoichiometric extraction
DOI: 10.1351/goldbook.S06080
Status: current

Definition
Solvent extraction in which the amount of reagent used is lower than that dictated by stoichiometry. If the constants of formation and extraction of the complexes are high, the amount of extracted metal is dictated by the amount of extractant introduced.

Related Terms
- Solvent extraction: https://goldbook.iupac.org/terms/view/S05752
- extractant: https://goldbook.iupac.org/terms/view/E02299
- extraction: https://goldbook.iupac.org/terms/view/E02301
- reagent: https://goldbook.iupac.org/terms/view/R05190
- stoichiometry: https://goldbook.iupac.org/terms/view/S06026

Source
- PAC, 1993, 65, 2373. 'Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)' on page 2379 (https://doi.org/10.1351/pac199365112373)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/S06080/html
- json: https://goldbook.iupac.org/terms/view/S06080/json
- xml: https://goldbook.iupac.org/terms/view/S06080/xml

Citation: Citation: 'substoichiometric 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.S06080
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Accessed: 2026-06-28T11:13:06+00:00