{"term":{"id":"15371","title":"wet residue method","longtitle":"IUPAC Gold Book - wet residue method","doi":"10.1351\/goldbook.15371","code":"15371","status":"current","synonym":"<em>synonyms<\/em>: initial complex method, Schreinemakers’ method","definitions":[{"id":1,"text":"Method for determining composition of a solid phase in a ternary system at constant temperature and pressure by analysis of the total mixture of solid and liquid in equilibrium.","notes":{"1":"The method relies on the fact that the wet residue lies on the tie-line connecting the solid phase and the saturated liquid phase. Equally well, the initial mixture of solid and liquid used in the solubility experiment can be used, when it is referred to as the \"initial complex\" method. In either case, two or more tie-lines intersect at the composition of the solid phase.","2":"The method is generally more reliable than isolation and analysis of the solid phase, especially when the solid phase is a hydrate."},"links":[{"term":"ternary system","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/15366"},{"term":"tie-line","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/15367"}],"sources":["PAC, 2008, 80, 233. 'Glossary of terms related to solubility (IUPAC Recommendations 2008)' on page 271 (https:\/\/doi.org\/10.1351\/pac200880020233)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/15371\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/15371\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/15371\/plain"},"citation":"Citation: 'wet residue method' 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.15371","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":"2026-04-21T11:58:59+00:00"}}