Cyclohexane
- Formula: C6H12
- Molecular weight: 84.1595
- IUPAC Standard InChI: InChI=1S/C6H12/c1-2-4-6-5-3-1/h1-6H2
- IUPAC Standard InChIKey: XDTMQSROBMDMFD-UHFFFAOYSA-N
- CAS Registry Number: 110-82-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Isotopologues:
- Other names: Benzene, hexahydro-; Hexahydrobenzene; Hexamethylene; Hexanaphthene; Cicloesano; Cykloheksan; Rcra waste number U056; UN 1145; NSC 406835
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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 (bar) | Reference | Comment |
|---|---|---|
| 40.8 ± 0.3 | Daubert, 1996 | |
| 40.71 | Teja and Rosenthal, 1990 | Uncertainty assigned by TRC = 0.20 bar; TRC |
| 40.75 | Hugill and McGlashan, 1978 | Uncertainty assigned by TRC = 0.02 bar; Visual, observed with periscope in heated metal block, PRT,; TRC |
| 40.97 | Pak and Kay, 1972 | Uncertainty assigned by TRC = 0.1034 bar; corrected for vapor pressure of Hg; TRC |
| 40.36 | Young, 1972 | Uncertainty assigned by TRC = 0.60 bar; TRC |
| 41.1076 | Glaser and Ruland, 1957 | Uncertainty assigned by TRC = 1.0132 bar; TRC |
| 40.367 | Young, 1910 | Uncertainty assigned by TRC = 0.3999 bar; TRC |
| 40.333 | Young and Fortey, 1899 | Uncertainty assigned by TRC = 0.1067 bar; TRC |
References
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.
Daubert, 1996
Daubert, T.E.,
Vapor-Liquid Critical Properties of Elements and Compounds. 5. Branched Alkanes and Cycloalkanes,
J. Chem. Eng. Data, 1996, 41, 365-372. [all data]
Teja and Rosenthal, 1990
Teja, A.S.; Rosenthal, D.J.,
The Critical Pressures and Temperatures of Twelve Substances Using A Low Residence Time Flow Apparatus,
AIChE Symp. Ser., 1990, 86, 279, 133-7. [all data]
Hugill and McGlashan, 1978
Hugill, J.A.; McGlashan, M.L.,
The vapour pressure from 451 K to the critical temperature, and the critical temperature and critical pressure, of cyclohexane,
J. Chem. Thermodyn., 1978, 10, 95. [all data]
Pak and Kay, 1972
Pak, S.C.; Kay, W.B.,
Gas-Liquid Critical Temperatures of Mixtures. Benzene + n-Alkanes and Hexafluorobenzene + n-Alkanes,
Ind. Eng. Chem. Fundam., 1972, 11, 255. [all data]
Young, 1972
Young, C.L.,
Gas-liquid critical properties of the cycloalkanes and their mixtures,
Aust. J. Chem., 1972, 25, 1625-30. [all data]
Glaser and Ruland, 1957
Glaser, F.; Ruland, H.,
Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen,
Chem. Ing. Techn., 1957, 29, 772. [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 and Fortey, 1899
Young, S.; Fortey, E.C.,
The Vapour Pressures, Specific Volumes and Critical Constants of Hexamethylene.,
J. Chem. Soc., Trans., 1899, 75, 873. [all data]
Notes
Go To: Top, Critical pressure, References
- Symbols used in this document:
Pc Critical pressure - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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