Term: co-ions
https://doi.org/10.1351/goldbook.C01141

Definition:
Ions of low relative molecular mass with a charge of the same sign as that of a given colloidal ion.

Related Terms:
1) ions (http://doi.org/10.1351/goldbook.I03158).
2) colloidal (http://doi.org/10.1351/goldbook.C01172).
3) relative molecular mass (http://doi.org/10.1351/goldbook.R05271).

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

Citation: 'co-ions' 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.C01141

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