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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, Kenneth Kroenlein director

Pc (atm) Reference Comment
48.08 ± 0.1Ambrose and Tsonopoulos, 1995 
48.15Colgate, Sivaraman, et al., 1992Uncertainty assigned by TRC = 0.1361 atm; TRC
48.081Friend, Ingham, et al., 1991Uncertainty assigned by TRC = 0.099 atm; TRC
48.16Teja, Lee, et al., 1989TRC
48.13Brunner, 1988Uncertainty assigned by TRC = 0.05 atm; Visual, optical cell 30cm high. P transducer cal. vs PB.; TRC
48.25Brunner, 1987Uncertainty assigned by TRC = 0.0482 atm; Visual, optical cell 30cm high. P transducer cal. vs PB.; TRC
48.0773Younglove and Ely, 1987Uncertainty assigned by TRC = 0.001 atm; TRC
48.25Brunner, 1985Uncertainty assigned by TRC = 0.05 atm; Visual, optical cell 30cm high. P transducer cal. vs PB.; TRC
47.16Morrison and Kincaid, 1984Uncertainty assigned by TRC = 0.39 atm; TRC
48.077Sychev, Vasserman, et al., 1982Uncertainty assigned by TRC = 0.099 atm; TRC
48.081Douslin and Harrison, 1973Uncertainty assigned by TRC = 0.0047 atm; TRC
48.20Khazanova and Sominskaya, 1971Uncertainty assigned by TRC = 0.09998 atm; TRC
48.11Miniovich and Sorina, 1971Uncertainty assigned by TRC = 0.01 atm; TRC
48.66Kay, 1964Uncertainty assigned by TRC = 0.5000 atm; TRC
49.78Schmidt and Thomas, 1954Uncertainty assigned by TRC = 2.0000 atm; TRC
48.12Kay and Brice, 1953Uncertainty assigned by TRC = 0.2722 atm; TRC
48.11Kay and Nevens, 1952Uncertainty assigned by TRC = 0.2722 atm; TRC
48.56Lu, Newitt, et al., 1941Uncertainty assigned by TRC = 0.5000 atm; TRC
48.46Kay, 1940Uncertainty assigned by TRC = 0.1360 atm; TRC
48.20Beattie, Su, et al., 1939Uncertainty assigned by TRC = 0.4000 atm; TRC
48.46Kay, 1938Uncertainty assigned by TRC = 1.3609 atm; TRC
48.86Sage, Webster, et al., 1937Uncertainty assigned by TRC = 0.8165 atm; TRC
48.13Price, 1915Uncertainty assigned by TRC = 1.0000 atm; TRC
48.85Cardoso and Bell, 1912Uncertainty assigned by TRC = 2.0000 atm; TRC
48.9000Kuenen, 1903Uncertainty assigned by TRC = 0.5000 atm; TRC
48.43Kuenen and Robson, 1902Uncertainty assigned by TRC = 2.0000 atm; TRC
50.23Olszewski, 1895Uncertainty assigned by TRC = 2.0000 atm; TRC
50.33Hainlen, 1894Uncertainty assigned by TRC = 4.000 atm; TRC
45.20Dewar, 1884Uncertainty assigned by TRC = 3.0000 atm; TRC; Data excluded from overall average

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]

Colgate, Sivaraman, et al., 1992
Colgate, S.O.; Sivaraman, A.; Dejsupa, C., Sonic speed and critical point measurements in ethane by the acoustic resonance method, Fluid Phase Equilib., 1992, 76, 175-85. [all data]

Friend, Ingham, et al., 1991
Friend, D.G.; Ingham, H.; Ely, J.F., Thermophysical properties of ethane, J. Phys. Chem. Ref. Data, 1991, 20(2), 275-347. [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]

Brunner, 1987
Brunner, E., Fluid mixtures at high pressures VI. Phase separation and critical phenomina in 18 binary mixtures containing either pyridine or ethanoic acid, J. Chem. Thermodyn., 1987, 19, 823. [all data]

Younglove and Ely, 1987
Younglove, B.A.; Ely, J.F., Thermophysical Properties of Fluids II. Methane, Ethane, Propane, Isobutane, and Normal Butane, J. Phys. Chem. Ref. Data, 1987, 16, 577. [all data]

Brunner, 1985
Brunner, E., Fluid mixtures at high pressures II. Phase separation and critical phenomena of (ethane + an n-alkanol) and of (ethene + methanol) and (propane + methanol), J. Chem. Thermodyn., 1985, 17, 871. [all data]

Morrison and Kincaid, 1984
Morrison, G.; Kincaid, J.M., Critical Point Measurements on Nearly Polydisperse Fluids, AIChE J., 1984, 30, 257. [all data]

Sychev, Vasserman, et al., 1982
Sychev, V.V.; Vasserman, A.A.; Kozlov, A.D.; Zagoruchenko, V.A.; Spiridonov, G.A.; Tsymarny, V.A., Thermodynamic Properties of Ethane, Standards Publishing House, 1982. [all data]

Douslin and Harrison, 1973
Douslin, D.R.; Harrison, R.H., Pressure, Volume, Temperature Relations of Ethane, J. Chem. Thermodyn., 1973, 5, 491-512. [all data]

Khazanova and Sominskaya, 1971
Khazanova, N.E.; Sominskaya, E.E., Changes in the Volume of Ethane Near Its Critical Point, Russ. J. Phys. Chem. (Engl. Transl.), 1971, 45, 88-9. [all data]

Miniovich and Sorina, 1971
Miniovich, V.M.; Sorina, G.A., P-V-T Relations for Ethane in the Vicinity of Its Critical Point of the critical point of ethane: I p-v-t relations for ethane in the vicintiy of its critical point, Russ. J. Phys. Chem. (Engl. Transl.), 1971, 45, 306-7. [all data]

Kay, 1964
Kay, W.B., P-T-x Diagrams in the Critical Region. Acetone-n-Alkane Systems, J. Phys. Chem., 1964, 68, 827-31. [all data]

Schmidt and Thomas, 1954
Schmidt, E.; Thomas, W., Precise Determination of the Critical Points of Carbon Dioxide and Ethane by Measuring Light Refraction, Forsch. Geb. Ingenieurw., 1954, 20B, 161-70. [all data]

Kay and Brice, 1953
Kay, W.B.; Brice, D.B., Liquid-Vapor Equilibrium Relations in Ethane-Hydrogen Sulfide System, Ind. Eng. Chem., 1953, 45, 615-8. [all data]

Kay and Nevens, 1952
Kay, W.B.; Nevens, T.D., Liquid-Vapor Equilibrium Relations in Binary Systems: the Ethane-benzene SYStem, Chem. Eng. Prog., Symp. Ser., 1952, 48, 3, 108. [all data]

Lu, Newitt, et al., 1941
Lu, H.; Newitt, D.M.; Ruhemann, M., Two-phase Equilibrium in Binary and Ternary Systems IV. The System Ethane-Propylene, Proc. R. Soc. London, A, 1941, 178, 506-25. [all data]

Kay, 1940
Kay, W.B., Liquid-Vapor Equilibrium Relations in Binary Systems. The Ethane- Butane System, Ind. Eng. Chem., 1940, 32, 353-7. [all data]

Beattie, Su, et al., 1939
Beattie, J.A.; Su, G.-J.; Simard, G.L., The Critical Constants of Ethane, J. Am. Chem. Soc., 1939, 61, 924. [all data]

Kay, 1938
Kay, W.B., Liquid-Vapor Phase Equilibrium Relations in the Ethane-n-Heptane Syst., Ind. Eng. Chem., 1938, 30, 459-65. [all data]

Sage, Webster, et al., 1937
Sage, B.H.; Webster, D.C.; Lacey, W.N., Phase Equilibria in Hydrocarbon Systems: Thermodynamic Properties of Ethane ethane, Ind. Eng. Chem., 1937, 29, 658-666. [all data]

Price, 1915
Price, T.W., XX. Osmotic Pressure of Alcoholic Solutions. Part I. Vapour Pressures and Densities, J. Chem. Soc., 1915, 107, 188-98. [all data]

Cardoso and Bell, 1912
Cardoso, E.; Bell, R., Critical constants of ethane, carbon dioxide and sulfur dioxide, J. Chim. Phys. Phys.-Chim. Biol., 1912, 10, 497. [all data]

Kuenen, 1903
Kuenen, J.P., On the Mutual Solubility of Liquids, Philos. Mag., 1903, 6, 637. [all data]

Kuenen and Robson, 1902
Kuenen, J.P.; Robson, W.G., Vapor-pressures of carbon dioxide and of ehane at temperatures below 0 deg C., Philos. Mag., 1902, 3, 149-59. [all data]

Olszewski, 1895
Olszewski, K., On the liquefaction of gases, Philos. Mag., 1895, 39, 188. [all data]

Hainlen, 1894
Hainlen, A., Propane and Ethane in the Liquid State., Justus Liebigs Ann. Chem., 1894, 282, 229-45. [all data]

Dewar, 1884
Dewar, J., On the Liquefaction of Oxygen and the Critical Volumes of Fluids, Philos. Mag., 1884, 18, 210-6. [all data]


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