Term: swelling pressure
https://doi.org/10.1351/goldbook.S06203

Definition:
That pressure difference Π sw or Π which has to be established between a gel and its equilibrium liquid, to prevent further swelling of the gel.

Related Terms:
1) gel (<em>in colloid and surface chemistry</em>) (http://doi.org/10.1351/goldbook.G02600).
2) swelling (<em>in colloid and surface chemistry</em>) (http://doi.org/10.1351/goldbook.S06202).

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 615 (https://doi.org/10.1351/pac197231040577)

Citation: 'swelling pressure' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.S06203

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