Term: critical pressure, \(p_{\text{c}}\)
https://doi.org/10.1351/goldbook.C01397

Definition:
The minimum pressure which would suffice to liquefy a substance at its critical temperature. Above the critical pressure, increasing the temperature will not cause a fluid to vaporize to give a two-phase system.

Related Terms:
1) critical temperature (http://doi.org/10.1351/goldbook.C01402).

Source: PAC, 1993, 65, 2397. 'Nomenclature for supercritical fluid chromatography and extraction (IUPAC Recommendations 1993)' on page 2399 (https://doi.org/10.1351/pac199365112397)

Citation: 'critical pressure, \(p_{\text{c}}\)' 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.C01397

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