Methane, iodo-

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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas14.3 ± 1.4kJ/molEqkGolden, Walsh, et al., 1965Reanalyzed by Cox and Pilcher, 1970, Original value = 13.7 ± 0.67 kJ/mol
Δfgas14.6 ± 1.0kJ/molEqkGoy and Pritchard, 1965Reanalyzed by Cox and Pilcher, 1970, Original value = 14.2 ± 1.0 kJ/mol
Δfgas16. ± 1.kJ/molChydCarson, Carter, et al., 1961 

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-13.6 ± 0.5kJ/molCcrCarson, Laye, et al., 1993ALS
Δfliquid-12. ± 1.kJ/molChydCarson, Carter, et al., 1961ALS
Quantity Value Units Method Reference Comment
Δcliquid-808.6 ± 0.3kJ/molCcrCarson, Laye, et al., 1993ALS

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
82.75298.15Carson, Laye, et al., 1993DH
82.0298.15Shehatta, 1993DH
82.76298.2Low and Moelwyn-Hughes, 1962T = 293 to 308 K.; DH
82.68300.Harrison and Moelwyn-Hughes, 1957T = 243 to 303 K.; DH
148.1298.Kurbatov, 1948T = -56 to 35°C. Mean Cp five temperatures.; DH

References

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

Golden, Walsh, et al., 1965
Golden, D.M.; Walsh, R.; Benson, S.W., The thermochemistry of the gas phase equilibrium I2 + CH4 «=» CH3I + HI and the heat of formation of the methyl radical, J. Am. Chem. Soc., 1965, 87, 4053-4057. [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]

Goy and Pritchard, 1965
Goy, C.A.; Pritchard, H.O., Kinetics and thermodynamics of the reaction between iodine and methane and the heat of formation of methyl iodide, J. Phys. Chem., 1965, 69, 3040-3041. [all data]

Carson, Carter, et al., 1961
Carson, A.S.; Carter, W.; Pedley, J.B., The thermochemistry of reductions caused by lithium aluminium hydride I. The C-I bond dissociation energy in CH3I, Proc. Roy. Soc. London A, 1961, 260, 550-557. [all data]

Carson, Laye, et al., 1993
Carson, A.S.; Laye, P.G.; Pedley, J.B.; Welsby, A.M., The enthalpies of formation iodomethane, diiodomethane, triiodomethane, and tetraiodomethane by rotating combustion calorimetry, J. Chem. Thermodyn., 1993, 25, 261-269. [all data]

Shehatta, 1993
Shehatta, I., Heat capacity at constant pressure of some halogen compounds, Thermochim. Acta, 1993, 213, 1-10. [all data]

Low and Moelwyn-Hughes, 1962
Low, D.I.R.; Moelwyn-Hughes, E.A., The heat capacities of acetone, methyl iodide and mixtures thereof in the liquid state, Proc. Roy. Soc. (London), 1962, A267, 384-394. [all data]

Harrison and Moelwyn-Hughes, 1957
Harrison, D.; Moelwyn-Hughes, E.A., The heat capacities of certain liquids, Proc. Roy. Soc. (London), 1957, A239, 230-246. [all data]

Kurbatov, 1948
Kurbatov, V.Ya., Heat capacity of liquids. 2. Heat capacity and the temperature dependence of heat capacity from halogen derivatives of acylic hydrocarbons, Zh. Obshch. Kim., 1948, 18, 372-389. [all data]


Notes

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