Title: deflocculation
Long Title: IUPAC Gold Book - deflocculation
DOI: 10.1351/goldbook.D01555
Status: current

Definition
The reversal of coagulation or flocculation, i.e. the dispersion of aggregates to form a colloidally stable suspension or emulsion.

Related Terms
- coagulation: https://goldbook.iupac.org//terms/view/C01117
- colloidally stable: https://goldbook.iupac.org//terms/view/C01176
- emulsion: https://goldbook.iupac.org//terms/view/E02065
- flocculation: https://goldbook.iupac.org//terms/view/F02429
- suspension: https://goldbook.iupac.org//terms/view/S06198

Source
- PAC, 1972, 31, 577. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry' on page 610 (https://doi.org/10.1351/pac197231040577)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/D01555/html
- json: https://goldbook.iupac.org/terms/view/D01555/json
- xml: https://goldbook.iupac.org/terms/view/D01555/xml

Citation: Citation: 'deflocculation' 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.D01555
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.
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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: 2026-06-07T04:43:56+00:00