Cyclohexane, (1-methylethyl)-
- Formula: C9H18
- Molecular weight: 126.2392
- IUPAC Standard InChI: InChI=1S/C9H18/c1-8(2)9-6-4-3-5-7-9/h8-9H,3-7H2,1-2H3
- IUPAC Standard InChIKey: GWESVXSMPKAFAS-UHFFFAOYSA-N
- CAS Registry Number: 696-29-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Cyclohexane, isopropyl-; Isopropylcyclohexane; Hexahydrocumene; Normanthane
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Phase change data
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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 426. ± 5. | K | AVG | N/A | Average of 19 values; Individual data points |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 182.75 | K | N/A | Anonymous, 1941 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Tfus | 183.35 | K | N/A | Wibaut, Hoog, et al., 1939 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Tfus | 183.35 | K | N/A | Smittenberg, Hoog, et al., 1938 | Uncertainty assigned by TRC = 0.2 K; same value for "freezing point" and "melting point"; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 10.53 | kcal/mol | N/A | Majer and Svoboda, 1985 |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 10.5 | 310. | A | Stephenson and Malanowski, 1987 | Based on data from 295. - 431. K.; AC |
| 9.82 | 359. | N/A | Forziati, Norris, et al., 1949 | Based on data from 344. - 429. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference |
|---|---|---|---|---|
| 343.66 - 428.8 | 3.99176 | 1452.816 | -63.759 | Forziati, Norris, et al., 1949, 2 |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Anonymous, 1941
Anonymous, R.,
, Am. Pet. Inst. Hydrocarbon Res. Proj., Third Annu. Rep., Ohio State Univ., Aug. 31, 1941. [all data]
Wibaut, Hoog, et al., 1939
Wibaut, J.P.; Hoog, H.; Langedijk, S.L.; Overhoff, J.; Smittenberg, J.; Benninga, N.; Bouman, G.P.; van Dijk, H.; Gaade, W.; Geldof, H.; Hackmann, J.Th.; Jonker, E.W.; Paap, T.; Zuiderweg, F.J.,
Study on the Preparation and the Physical Constants of A Number of Alkanes and Cycloalkanes,
Recl. Trav. Chim. Pays-Bas, 1939, 58, 329. [all data]
Smittenberg, Hoog, et al., 1938
Smittenberg, J.; Hoog, H.; Henkes, R.A.,
Freezing Points of A Number of Pure Hydrocarbons of the Gasoline Boiling Range and of Some of their Binary Mixtures,
J. Am. Chem. Soc., 1938, 60, 17. [all data]
Majer and Svoboda, 1985
Majer, V.; Svoboda, V.,
Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Forziati, Norris, et al., 1949
Forziati, Alphonse F.; Norris, William R.; Rossini, Frederick D.,
Vapor pressures and boiling points of sixty API-NBS hydrocarbons,
J. RES. NATL. BUR. STAN., 1949, 43, 6, 555-17, https://doi.org/10.6028/jres.043.050
. [all data]
Forziati, Norris, et al., 1949, 2
Forziati, A.F.; Norris, W.R.; Rossini, F.D.,
Vapor Pressures and Boiling Points of Sixty API-NBS Hydrocarbons,
J. Res. Natl. Bur. Stand. (U.S.), 1949, 43, 6, 555-563, https://doi.org/10.6028/jres.043.050
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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