Cyclohexane, methyl-

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Gas 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
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-154.8 ± 1.0kJ/molCcbProsen, Johnson, et al., 1946ALS
Δfgas-159.9kJ/molN/AMoore, Renquist, et al., 1940Value computed using ΔfHliquid° value of -195.3±1.9 kj/mol from Moore, Renquist, et al., 1940 and ΔvapH° value of 35.4 kj/mol from Prosen, Johnson, et al., 1946.; DRB
Quantity Value Units Method Reference Comment
gas343.30J/mol*KN/ABeckett C.W., 1947GT

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
36.5050.Thermodynamics Research Center, 1997p=1 bar. Recommended S(T) and Cp(T) values differ significantly from earlier statistically calculated values [ Beckett C.W., 1947] at high temperatures (6 and 7 J/mol*K, respectively, at 1500 K).; GT
52.01100.
70.55150.
90.31200.
123.5273.15
135.8298.15
136.7300.
186.0400.
229.9500.
266.8600.
297.6700.
323.5800.
345.4900.
364.11000.
380.11100.
393.81200.
405.61300.
415.81400.
424.51500.
441.81750.
454.22000.
463.32250.
470.12500.
475.42750.
479.53000.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
180.75390.Spitzer R., 1946Please also see Montgomery J.B., 1942.; GT
184.6 ± 1.7398.
189.12410.
203.4 ± 2.1439.
222.8 ± 2.1480.
241.9 ± 2.5527.

Condensed phase thermochemistry data

Go To: Top, Gas phase 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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-190.2 ± 1.0kJ/molCcbProsen, Johnson, et al., 1946ALS
Δfliquid-195.3 ± 1.9kJ/molCcbMoore, Renquist, et al., 1940Reanalyzed by Cox and Pilcher, 1970, Original value = -192.5 kJ/mol; ALS
Quantity Value Units Method Reference Comment
Δcliquid-4565.29 ± 0.96kJ/molCcbProsen, Johnson, et al., 1946Corresponding Δfliquid = -190.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-4564.3 ± 1.9kJ/molCcbMoore, Renquist, et al., 1940Reanalyzed by Cox and Pilcher, 1970, Original value = -4562.3 ± 1.9 kJ/mol; Corresponding Δfliquid = -191.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-4604.9kJ/molCcbZubova, 1901Corresponding Δfliquid = -151. kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid247.90J/mol*KN/ADouslin and Huffman, 1946DH
liquid248.1J/mol*KN/AParks and Huffman, 1930Extrapolation below 90 K, 54.73 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
184.38298.15Shiohama, Ogawa, et al., 1988DH
184.96298.15Tanaka, 1985DH
185.29298.15Grolier, Inglese, et al., 1982T = 298.15 K.; DH
184.8298.15Wilhelm, Grolier, et al., 1979DH
184.84298.15Holzhauer and Ziegler, 1975T = 144 to 312 K. Cp = 129.88277 - 0.0054107773T + 7.9975642x10-4T2 J/mol*K.; DH
185.27298.055Hwa and Ziegler, 1966T = 175 to 308 K. Unsmoothed experimental datum.; DH
184.51298.15Douslin and Huffman, 1946T = 12 to 300 K.; DH
182.0294.2Parks and Huffman, 1930T = 93 to 294 K. Value is unsmoothed experimental datum.; DH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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]

Moore, Renquist, et al., 1940
Moore, G.E.; Renquist, M.L.; Parks, G.S., Thermal data on organic compounds. XX. Modern combustion data for two methylnonanes, methyl ethyl ketone, thiophene and six cycloparaffins, J. Am. Chem. Soc., 1940, 62, 1505-1507. [all data]

Beckett C.W., 1947
Beckett C.W., The thermodynamic properties and molecular structure of cyclohexane, methylcyclohexane, ethylcyclohexane, and seven dimethylcyclohexanes, J. Am. Chem. Soc., 1947, 69, 2488-2495. [all data]

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

Spitzer R., 1946
Spitzer R., The heat capacity of gaseous cyclopentane, cyclohexane and methylcyclohexane, J. Am. Chem. Soc., 1946, 68, 2537-2538. [all data]

Montgomery J.B., 1942
Montgomery J.B., The heat capacity of organic vapors. IV. Benzene, fluorobenzene, toluene, cyclohexane, methylcyclohexane and cyclohexene, J. Am. Chem. Soc., 1942, 64, 2375-2377. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Zubova, 1901
Zubova, P., Data about heat of combustion of compound cycle structure, Zh. Fiz. Khim., 1901, 33, 708-722. [all data]

Douslin and Huffman, 1946
Douslin, D.R.; Huffman, H.M., The heat capacities, heats of transition, heats of fusion and entropies of cyclopentane, methylcyclopentane and methylcylohexane, J. Am. Chem. Soc., 1946, 68, 173-176. [all data]

Parks and Huffman, 1930
Parks, G.S.; Huffman, H.M., Thermal data on organic compounds. IX. A study of the effect of unsaturation on the heat capacities, entropies and free energies of some hydrocarbons and other compounds, J. Am. Chem. Soc., 1930, 52, 4381-4391. [all data]

Shiohama, Ogawa, et al., 1988
Shiohama, Y.; Ogawa, H.; Murakami, S.; Fujihara, I., Excess thermodynamic properties of (cis-decalin or trans-decalin + cyclohexane or methylcyclohexane or cyclooctane) at 298.15 K, J. Chem. Thermodynam., 1988, 20, 1307-1314. [all data]

Tanaka, 1985
Tanaka, R., Excess heat capacities for mixtures of benzene with cyclopentane, methylcyclohexane, and cyclooctane at 298.15 K, J. Chem. Eng. Data, 1985, 30, 267-269. [all data]

Grolier, Inglese, et al., 1982
Grolier, J.-P.E.; Inglese, A.; Wilhelm, E., Excess volumes and excess heat capacities of tetrachloroethene + cyclohexane, + methylcyclohexane, + benzene, and + toluene at 298.15 K, J. Chem. Thermodynam., 1982, 14, 523-529. [all data]

Wilhelm, Grolier, et al., 1979
Wilhelm, E.; Grolier, G.-P.E.; Karbalai Ghassemi, M.H., Molar heat capacity of binary liquid mixtures: 1,2-dichloroethane + cyclohexane and 1,2-dichloroethane + methylcyclohexane, Thermochim. Acta, 1979, 28, 59-69. [all data]

Holzhauer and Ziegler, 1975
Holzhauer, J.K.; Ziegler, W.T., Temperature dependence of excess thermodynamic properties of n-heptane-toluene, methylcyclohexane-toluene, and n-heptane-methylcyclohexane systems, J. Phys. Chem., 1975, 79(6), 590-604. [all data]

Hwa and Ziegler, 1966
Hwa, S.C.P.; Ziegler, W.T., Temperature dependence of excess thermodynamic properties of ethanol-methylcyclohexane and ethanol-toluene systems, J. Phys. Chem., 1966, 70(8), 2572-2593. [all data]


Notes

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