Title: sol-gel critical concentration Long Title: IUPAC Gold Book - sol-gel critical concentration DOI: 10.1351/goldbook.ST07634 Status: current Definition Concentration of an added electrolyte above which a particulate sol undergoes coagulation instead of gelation. Related Terms - coagulation: https://goldbook.iupac.org//terms/view/A00182 - gelation: https://goldbook.iupac.org//terms/view/GT07621 - particulate sol: https://goldbook.iupac.org//terms/view/PT07510 Source - PAC, 2007, 79, 1801. 'Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)' on page 1825 (https://doi.org/10.1351/pac200779101801) Other Outputs - html: https://goldbook.iupac.org/terms/view/ST07634/html - json: https://goldbook.iupac.org/terms/view/ST07634/json - xml: https://goldbook.iupac.org/terms/view/ST07634/xml Citation: Citation: 'sol-gel critical 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.ST07634 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: 2026-06-20T09:35:05+00:00