Cyclohexane, propyl-
- Formula: C9H18
- Molecular weight: 126.2392
- IUPAC Standard InChIKey: DEDZSLCZHWTGOR-UHFFFAOYSA-N
- CAS Registry Number: 1678-92-8
- 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: Propylcyclohexane; n-Propylcyclohexane; Cyclohexane, n-propyl-
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -192.4 | kJ/mol | N/A | Good, 1970 | Value computed using ΔfHliquid° value of -237.5±1.1 kj/mol from Good, 1970 and ΔvapH° value of 45.1 kj/mol from Prosen, Johnson, et al., 1946.; DRB |
ΔfH°gas | -193.3 ± 1.3 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 419.86 | J/mol*K | N/A | Finke H.L., 1965 | GT |
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 | -237.5 ± 1.1 | kJ/mol | Ccb | Good, 1970 | ALS |
ΔfH°liquid | -238.4 ± 1.3 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -5876.60 ± 0.92 | kJ/mol | Ccb | Good, 1970 | Corresponding ΔfHºliquid = -237.5 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -5875.8 ± 1.1 | kJ/mol | Ccb | Prosen, Johnson, et al., 1946 | Corresponding ΔfHºliquid = -238.3 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 311.88 | J/mol*K | N/A | Finke, Messerly, et al., 1965 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
242.04 | 298.15 | Finke, Messerly, et al., 1965 | T = 10 to 380 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 | 429. ± 3. | K | AVG | N/A | Average of 24 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 178.09 | K | N/A | Boord, Greenlee, et al., 1946 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tfus | 178.19 | K | N/A | Forziati, Glasgow, et al., 1946 | Uncertainty assigned by TRC = 0.02 K; TRC |
Tfus | 178.06 | K | N/A | Anonymous, 1941 | Uncertainty assigned by TRC = 0.1 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 178.25 | K | N/A | Finke, Messerly, et al., 1965 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 45. ± 1. | kJ/mol | AVG | N/A | Average of 10 values; Individual data points |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
41.7 | 361. | A,MM | Stephenson and Malanowski, 1987 | Based on data from 346. to 431. K. See also Stull, 1947 and Forziati, Norris, et al., 1949.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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Temperature (K) | A | B | C | Reference |
---|---|---|---|---|
345.84 to 430.89 | 4.01356 | 1461.715 | -65.16 | Forziati, Norris, et al., 1949, 2 |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.072 | 178.25 | Finke, Messerly, et al., 1965 | DH |
10.6 | 178. | Mandanici, Cutroni, et al., 2006 | AC |
10.37 | 178.3 | Acree, 1991 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
58.19 | 178.25 | Finke, Messerly, et al., 1965 | DH |
Gas phase ion energetics 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: Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
IE (eV) | Method | Reference |
---|---|---|
9.46 | EQ | Sieck and Mautner(Meot-Ner), 1982 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Good, 1970
Good, W.D.,
The enthalpies of combustion and formation of n-propylcyclohexane and six methylethylcyclohexanes,
J. Chem. Thermodyn., 1970, 2, 399-405. [all data]
Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D.,
Heats of formation and combustion of the normal alkylcyclopentanes and cyclohexanes and the increment per CH2 group for several homologous series of hydrocarbons,
J. Res. NBS, 1946, 37, 51-56. [all data]
Finke H.L., 1965
Finke H.L.,
Thermodynamic properties of n-propyl-, n-butyl-, and n-decyl-substituted cyclohexane from 10 to 370 K,
J. Phys. Chem., 1965, 69, 2094-2100. [all data]
Finke, Messerly, et al., 1965
Finke, H.L.; Messerly, J.F.; Todd, S.S.,
Thermodynamic properties of n-propyl-, n-butyl-, and n-decyl-substituted cyclohexane from 10 to 370 K,
J. Phys. Chem., 1965, 69, 2094-2100. [all data]
Boord, Greenlee, et al., 1946
Boord, C.E.; Greenlee, K.W.; Perilstein, W.L.,
The Synthesis, Purification and Prop. of Hydrocarbons of Low Mol. Weight, Am. Pet. Inst. Res. Proj. 45, Eighth Annu. Rep., Ohio State Univ., June 30, 1946. [all data]
Forziati, Glasgow, et al., 1946
Forziati, A.F.; Glasgow, A.R.; Willingham, C.B.; Rossini, F.D.,
Specification adn Properties of 29 Paraffin, 4 Alkylcyclopentanes, 10 Alkylcyclohexanes and 8 Alkylbenzene Hydrocarbons,
J. Res. Natl. Bur. Stand. (U. S.), 1946, 36, 129. [all data]
Anonymous, 1941
Anonymous, R.,
, Am. Pet. Inst. Hydrocarbon Res. Proj., Third Annu. Rep., Ohio State Univ., Aug. 31, 1941. [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]
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]
Mandanici, Cutroni, et al., 2006
Mandanici, Andrea; Cutroni, Maria; Triolo, Alessandro; Rodriguez-Mora, Virginia; Ramos, Miguel A.,
Thermodynamic study of alkyl-cyclohexanes in liquid, glassy, and crystalline states,
J. Chem. Phys., 2006, 125, 5, 054514, https://doi.org/10.1063/1.2238863
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Sieck and Mautner(Meot-Ner), 1982
Sieck, L.W.; Mautner(Meot-Ner), M.,
Ionization energies and entropies of cycloalkanes. Kinetics of free energy controlled charge-transfer reactions,
J. Phys. Chem., 1982, 86, 3646. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°gas Entropy of gas at standard conditions S°liquid Entropy of liquid at standard conditions Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature 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 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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