Title: closed-vessel acid digestion
Long Title: IUPAC Gold Book - closed-vessel acid digestion
DOI: 10.1351/goldbook.10233
Status: current

Definition
Type of acid digestion performed in a closed vessel at elevated pressure.

Note
The increased rate of decomposition and retention of volatile trace elements is an advantage over open-vessel acid digestion.

Related Terms
- acid digestion: https://goldbook.iupac.org//terms/view/10232
- open-vessel acid digestion: https://goldbook.iupac.org//terms/view/10236

Source
- PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 540 (https://doi.org/10.1515/pac-2015-0903)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/10233/html
- json: https://goldbook.iupac.org/terms/view/10233/json
- xml: https://goldbook.iupac.org/terms/view/10233/xml

Citation: Citation: 'closed-vessel acid digestion' 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.10233
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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: 2026-06-29T08:34:46+00:00