Title: sol-gel transition
Long Title: IUPAC Gold Book - sol-gel transition
DOI: 10.1351/goldbook.S05731
Status: current

Definition
Transition of a sol to a gel at the gel point.

Note
Corrected from previous definition, within which the definition improperly attempts a redefinition of the terms sol and gel. The definition proposed here is recommended for its precision through cross-reference to the properly defined terms.

Related Terms
- gel: https://goldbook.iupac.org//terms/view/G02600
- gel point: https://goldbook.iupac.org//terms/view/GT07535
- precision: https://goldbook.iupac.org//terms/view/P04799
- sol: https://goldbook.iupac.org//terms/view/S05727

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 1826 (https://doi.org/10.1351/pac200779101801)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/S05731/html
- json: https://goldbook.iupac.org/terms/view/S05731/json
- xml: https://goldbook.iupac.org/terms/view/S05731/xml

Citation: Citation: 'sol-gel transition' 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.S05731
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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: 2026-07-12T23:30:04+00:00