{"term":{"id":"10229","title":"supercritical fluid extraction","longtitle":"IUPAC Gold Book - supercritical fluid extraction","doi":"10.1351\/goldbook.10229","code":"10229","status":"current","initialism":"<em>initialism<\/em>: SFE","definitions":[{"id":1,"text":"Use of a supercritical fluid to extract analytes from a solid or supported liquid sample.","notes":{"1":"The powdered sample, or supported liquid, is packed into a vessel and extracted using static or dynamic extraction conditions. The extracted material is typically recovered by reducing the pressure of the extraction fluid, allowing it to evaporate.","2":"The most common supercritical fluid for extraction is carbon dioxide (critical point = \\(\\pu{39.9^{\\circ}C}\\) and \\(\\pu{73.8 bar}\\)). Its extraction properties are varied by changing its density (temperature and pressure) or by addition of polar organic solvents."},"sources":["PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 538 (https:\/\/doi.org\/10.1515\/pac-2015-0903)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/10229\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/10229\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/10229\/plain"},"citation":"Citation: 'supercritical fluid 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.10229","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":"2026-07-26T13:51:04+00:00"}}