Title: coprecipitation
Long Title: IUPAC Gold Book - coprecipitation
DOI: 10.1351/goldbook.C01339
Status: current

Definition
The simultaneous precipitation of a normally soluble component with a macro-component from the same solution by the formation of mixed crystals, by adsorption, occlusion or mechanical entrapment.

Related Terms
- adsorption: https://goldbook.iupac.org//terms/view/A00155
- mechanical entrapment: https://goldbook.iupac.org//terms/view/M03800
- precipitation: https://goldbook.iupac.org//terms/view/P04795

Source
- Orange Book, 2nd ed., p. 86 (https://media.iupac.org/publications/analytical_compendium/)

Related Reference
- PAC, 1979, 51, 1195. 'Separation and Preconcentration of Trace Substances. I-Preconcentration for Inorganic Trace Analysis' on page 1199 (https://doi.org/10.1351/pac197951051195)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/C01339/html
- json: https://goldbook.iupac.org/terms/view/C01339/json
- xml: https://goldbook.iupac.org/terms/view/C01339/xml

Citation: Citation: 'coprecipitation' 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.C01339
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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: 2026-07-26T12:11:23+00:00