Benzene, cyclohexyl-
- Formula: C12H16
- Molecular weight: 160.2554
- IUPAC Standard InChIKey: IGARGHRYKHJQSM-UHFFFAOYSA-N
- CAS Registry Number: 827-52-1
- 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, phenyl-; Cyclohexylbenzene; Phenylcyclohexane; 1,1'-Biphenyl, 1,2,3,4,5,6-hexahydro-
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References, Notes
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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -3.98 ± 0.35 | kcal/mol | Ccb | Montgomery, Rossini, et al., 1978 | Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -4.6 ± 1.4 kcal/mol; ALS |
ΔfH°gas | -3.39 | kcal/mol | N/A | Good and Lee, 1976 | Value computed using ΔfHliquid° value of -76.6±1.1 kj/mol from Good and Lee, 1976 and ΔvapH° value of 62.4 kj/mol from Montgomery, Rossini, et al., 1978.; DRB |
Condensed phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -18.9 ± 1.3 | kcal/mol | Ccb | Montgomery, Rossini, et al., 1978 | ALS |
ΔfH°liquid | -18.30 ± 0.26 | kcal/mol | Ccb | Good and Lee, 1976 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1656.2 ± 1.3 | kcal/mol | Ccb | Montgomery, Rossini, et al., 1978 | Corresponding ΔfHºliquid = -18.92 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -1656.84 ± 0.22 | kcal/mol | Ccb | Good and Lee, 1976 | Corresponding ΔfHºliquid = -18.29 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
62.91 | 198.15 | O'Rourke and Mraw, 1983 | T = 220 to 475 K. Cp(c) = 0.8803 (T/K) - 29.2 (220 to 280.5 K); Cp(liq) = 0.6130 (T/K) + 80.4 (280.5 to 475 K) J/mol*K.; DH |
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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 512.7 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Tboil | 508.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 513.27 | K | N/A | Mears, Stanley, et al., 1963 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tboil | 513.27 | K | N/A | Jessup and Stanley, 1961 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 280.3 ± 0.6 | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 14.5 ± 0.4 | kcal/mol | AVG | N/A | Average of 6 values; Individual data points |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
400.7 | 0.039 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
13.5 | 348. | N/A | Sohda, Okazaki, et al., 1990 | Based on data from 333. to 343. K.; AC |
12.3 | 436. | A | Stephenson and Malanowski, 1987 | Based on data from 421. to 513. 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 | Comment |
---|---|---|---|---|---|
340.7 to 513. | 4.97635 | 2339.819 | -42.881 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
3.6496 | 280.5 | O'Rourke and Mraw, 1983 | DH |
3.66 | 280.5 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.01 | 280.5 | O'Rourke and Mraw, 1983 | DH |
Reaction thermochemistry 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: 3H2 + C12H10 = C12H16
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -54. | kcal/mol | Eqk | Frye, 1962 | liquid phase |
By formula: 3H2 + C12H16 = C12H22
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -54. | kcal/mol | Eqk | Frye, 1962 | liquid phase |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Montgomery, Rossini, et al., 1978
Montgomery, R.L.; Rossini, F.D.; Mansson, M.,
Enthalpies of combustion, vaporization, and formation of phenylbenzene, cyclohexylbenzene, and cyclohexylcyclohexane; enthalpy of hydrogenation of certain aromatic systems,
J. Chem. Eng. Data, 1978, 23, 125-129. [all data]
Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P.,
Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]
Good and Lee, 1976
Good, W.D.; Lee, S.H.,
The enthalpies of formation of selected naphthalenes, diphenylmethanes, and bicyclic hydrocarbons,
J. Chem. Thermodyn., 1976, 8, 643-650. [all data]
O'Rourke and Mraw, 1983
O'Rourke, D.F.; Mraw, S.C.,
Heat capacities and enthalpies of fusion of dibenzothiophene (220 to 560 K) and of biphenyl, cyclohexylbenzene, and cyclohexylcyclohexane (220 to 475 K). Enthalpies and temperatures of three transitions in solid cyclohexylcyclohexane,
J. Chem. Thermodynam., 1983, 15, 489-502. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Mears, Stanley, et al., 1963
Mears, T.W.; Stanley, C.L.; Compere, E.L.; Howard, F.L.,
Synthesis, purification, and physical properties of seven twelve-carbon hyd rocarbons,
J. Res. Natl. Bur. Stand., Sect. A, 1963, 67, 475. [all data]
Jessup and Stanley, 1961
Jessup, R.S.; Stanley, C.L.,
Heats and volumes of mixing in several c(12) hydrocarbon systems,
J. Chem. Eng. Data, 1961, 6, 368-71. [all data]
Sohda, Okazaki, et al., 1990
Sohda, M.; Okazaki, M.; Iwai, Y.; Arai, Y.; Sakoguchi, A.; Ueoka, R.; Kato, Y.,
Vapor pressures of cyclohexylbenzene and diphenylmethane,
The Journal of Chemical Thermodynamics, 1990, 22, 6, 607-608, https://doi.org/10.1016/0021-9614(90)90152-G
. [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]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Frye, 1962
Frye, C.G.,
Equilibria in the hydrogenation of polycyclic aromatics,
J. Chem. Eng. Data, 1962, 7, 592-595. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Tboil Boiling point Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔrH° Enthalpy of reaction at standard conditions 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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