{"term":{"id":"15363","title":"standard amount concentration","longtitle":"IUPAC Gold Book - standard amount concentration","doi":"10.1351\/goldbook.15363","code":"15363","status":"current","synonym":"<em>synonym<\/em>: standard concentration","definitions":[{"id":1,"text":"Chosen value of amount concentration.","notes":{"1":"In principle, one may choose any value for the standard concentration, although the choice must be specified. The most common choice for standard concentration is \\(c^{_{^⦵\\!}} = \\pu{1 mol dm-3}\\), which is universally accepted."},"sources":["PAC, 2008, 80, 233. 'Glossary of terms related to solubility (IUPAC Recommendations 2008)' on page 267 (https:\/\/doi.org\/10.1351\/pac200880020233)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/15363\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/15363\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/15363\/plain"},"citation":"Citation: 'standard amount concentration' 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.15363","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":"2026-04-20T14:04:17+00:00"}}