{"term":{"id":"05751","title":"solvent","longtitle":"IUPAC Gold Book - solvent","doi":"10.1351\/goldbook.S05751","code":"S05751","status":"current","definitions":[{"id":1,"text":"The term applied to the whole initial liquid phase containing the extractant.","notes":{"1":"The solvent may contain only one extractant or it may be a composite homogeneous mixture of extractant(s) with diluent(s) and also sometimes modifiers and accelerators.","2":"The term solvent must not be used as a synonym for any of the individual components of a composite liquid phase even where, in the case of a single component (e.g. 3-methylbutan-2-one or tributyl phosphate), it becomes identical with the extractant.","3":"The term may be qualified to denote the extract from a given processing step e.g. loaded solvent."},"contexts":[],"links":[{"term":"composite","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/CT07545"},{"term":"extractant","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/E02299"}],"sources":["PAC, 1993, 65, 2373. 'Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)' on page 2381 (https:\/\/doi.org\/10.1351\/pac199365112373)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/S05751\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/S05751\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/S05751\/plain"},"citation":"Citation: 'solvent' 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.S05751","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":"2026-04-18T00:45:29+00:00"}}