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Critical pressure

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Pc (atm) Reference Comment
24.6 ± 0.3Ambrose and Tsonopoulos, 1995 
24.62Rosenthal and Teja, 1989Uncertainty assigned by TRC = 0.20 atm; TRC
24.54Teja, Lee, et al., 1989TRC
24.48Brunner, 1988Uncertainty assigned by TRC = 0.05 atm; Visual, optical cell 30cm high. P transducer cal. vs PB.; TRC
24.57Matzik and Schneider, 1985Uncertainty assigned by TRC = 0.30 atm; TRC
24.5441Kreglewski and Kay, 1969Uncertainty assigned by TRC = 0.1700 atm; TRC
24.537McMicking and Kay, 1965Uncertainty assigned by TRC = 0.4000 atm; TRC
24.55Connolly and Kandalic, 1962Uncertainty assigned by TRC = 0.4000 atm; TRC
24.6000Kreglewski, 1955Uncertainty assigned by TRC = 0.5000 atm; TRC
24.644Young, 1910Uncertainty assigned by TRC = 0.20 atm; TRC
24.6447Young, 1900Uncertainty assigned by TRC = 0.1973 atm; TRC
24.38Altschul, 1893Uncertainty assigned by TRC = 0.9679 atm; TRC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Go To: Top, Critical pressure, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Ambrose and Tsonopoulos, 1995
Ambrose, D.; Tsonopoulos, C., Vapor-Liquid Critical Properties of Elements and Compounds. 2. Normal Alkenes, J. Chem. Eng. Data, 1995, 40, 531-546. [all data]

Rosenthal and Teja, 1989
Rosenthal, D.J.; Teja, A.S., The Critical Properties of n-Alkanes Using a Low-Residence Time Flow Apparatus, AIChE J., 1989, 35, 1829. [all data]

Teja, Lee, et al., 1989
Teja, A.S.; Lee, R.J.; Rosenthal, D.J.; Anselme, M.J., Correlation of the Critical Properties of Alkanes and Alkanols in 5th IUPAC Conference on Alkanes and AlkanolsGradisca, 1989. [all data]

Brunner, 1988
Brunner, E., Fluid Mixtures at High Pressures VI. Phase Separation and Critical Phenomena in 18 (n-Alkane + Ammonia) and 4 (n-Alkane _ Methanol) Mixtures, J. Chem. Thermodyn., 1988, 20, 273. [all data]

Matzik and Schneider, 1985
Matzik, I.; Schneider, G.M., Fluid phase equilibria of binary mixtures of sulfur hexafluoride with octane, nonane, hendecane, and cis-decahydronaphthalene at temperature between 280 K and 440 K and at pressures up to 140 MPa, Ber. Bunsen-Ges. Phys. Chem., 1985, 89, 551. [all data]

Kreglewski and Kay, 1969
Kreglewski, A.; Kay, W.B., The Critical Constants of Conformal Mixtures, J. Phys. Chem., 1969, 73, 3359. [all data]

McMicking and Kay, 1965
McMicking, J.H.; Kay, W.B., Vapor Pressures and Saturated Liquid and Vapor Densities of The Isomeric Heptanes and Isomeric Octanes, Proc., Am. Pet. Inst., Sect. 3, 1965, 45, 75-90. [all data]

Connolly and Kandalic, 1962
Connolly, J.F.; Kandalic, G.A., Saturation Properties and Liquid Compressibilities for Benzene and n-Octane, J. Chem. Eng. Data, 1962, 7, 137. [all data]

Kreglewski, 1955
Kreglewski, A., The Critical Temperatures of Mixtures formed by Benzene and n-Octane with Iso-Alcohols, Rocz. Chem., 1955, 29, 754. [all data]

Young, 1910
Young, S., The Internal Heat of Vaporization constants of thirty pure substances, Sci. Proc. R. Dublin Soc., 1910, 12, 374. [all data]

Young, 1900
Young, S., Vapor Pressures, Specific Volumes, and Critical Constants of Normal Octane, J. Chem. Soc., 1900, 77, 1145. [all data]

Altschul, 1893
Altschul, M., The critical values of some organic compounds, Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1893, 11, 577. [all data]


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