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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:
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
solid,1 bar1.4 ± 0.1cal/mol*KAVGN/AAverage of 10 values; Individual data points

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
1.97298.Yin, Ziru, et al., 1991T = 300 to 420 K. Cp value reported at 298 K is 0.685 J/kg*K.; DH
2.402300.Isaacs and Wang, 1981T = 80 to 300 K. Cp = 8.729x10-4T + 6.27x10-6T2 + 6.309x10-9T3 J/g*K. Value calculated from equation.; DH
2.01300.Taylor and Groot, 1980T = 300 to 2400 K.; DH
2.0599300.Butland and Maddison, 1973T = 200 to 3500 K. Least squares fit of 'best' data gives: Cp = 0.538657 + 9.11129x10-6T - 90.2725T-1 - 43449.3T-2 + 1.59309x107T3 - 1.43688x109T-4 cal/g*K (250 to 3000 K).; DH
1.94298.15Markelov, Volga, et al., 1973T = 1 to 3000 K. Cp = 0.6752 J/g*K.; DH
1.94298.Sheindlin, Belevich, et al., 1972T = 273 to 3650 K. Cp calculated from equation applicable to the temperature range 273 to 1000 K.; DH
2.146298.15Lutcov, Volga, et al., 1970T = 57 to 320 K.; DH
2.025298.15Lutcov, Volga, et al., 1970T = 52 to 315 K.; DH
1.925298.15Lutcov, Volga, et al., 1970T = 51 to 311 K.; DH
1.925298.15Lutcov, Volga, et al., 1970T = 51 to 311 K.; DH
2.05300.McDonald, 1965T = 298 to 1723 K.; DH
2.136298.15DeSorbo and Tyler, 1957T = 13 to 300 K.; DH
1.874298.15DeSorbo, 1955T = 17 to 300 K.; DH
2.038298.15DeSorbo and Tyler, 1953T = 13 to 300 K.; DH
2.031293.5Jacobs and Parks, 1934T = 93 to 294 K. Value is unsmoothed experimental datum.; 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 by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director

Quantity Value Units Method Reference Comment
Ttriple5000.KN/AMarshall and McKellar, 1986Uncertainty assigned by TRC = 300. K
Quantity Value Units Method Reference Comment
Ptriple100.67atmN/AMarshall and McKellar, 1986Uncertainty assigned by TRC = 14.80 atm

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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.

Yin, Ziru, et al., 1991
Yin, C.; Ziru, L.; Ganghe, W.; Chengyun, W., et al., Determination of heat capacity of explosives and related materials by DSC, Proc. Int. Pyrotech. Semin. 17th(Vol. 1), 1991, 515-521. [all data]

Isaacs and Wang, 1981
Isaacs, L.L.; Wang, W.Y., Thermal properties of POCO process graphite, Therm. Conduct. 17th, 1981, 55-61. [all data]

Taylor and Groot, 1980
Taylor, R.E.; Groot, H., Thermophysical properties of POCO graphite, High Temp.-High Press., 1980, 12, 147-160. [all data]

Butland and Maddison, 1973
Butland, A.T.D.; Maddison, R.J., The specific heat of graphite: an evaluation of measurements, J. Nucl. Mater., 1973, 49, 45-56. [all data]

Markelov, Volga, et al., 1973
Markelov, N.V.; Volga, V.I.; Buchnev, L.M., Thermodynamic functions of single-crystal graphite in the temperature range 0-3000°K, Zhur. Fiz. Khim., 1973, 7, 1824-1827. [all data]

Sheindlin, Belevich, et al., 1972
Sheindlin, A.E.; Belevich, I.S.; Kozhevnikov, I.G., Enthalpy and specific heat of graphite in the temperature range 273-3650°K, Teplofiz. Vys. Temp., 1972, 10, 997-1001. [all data]

Lutcov, Volga, et al., 1970
Lutcov, A.I.; Volga, V.I.; Dymov, B.K., Thermal conductivity, electric resistivity and specific heat of dense graphites, Carbon, 1970, 8, 753-760. [all data]

McDonald, 1965
McDonald, R.A., Heat content and heat capacity of an extruded graphite from 341° to 1723°K, J. Chem. Eng. Data, 1965, 10, 243. [all data]

DeSorbo and Tyler, 1957
DeSorbo, W.; Tyler, W.W., Effect of irradiation on the low-temperature specific heat of graphite, J. Chem. Phys., 1957, 26, 244-247. [all data]

DeSorbo, 1955
DeSorbo, W., Low temperature heat capacity of Ceylon graphite, J. Am. Chem. Soc., 1955, 77, 4713-4715. [all data]

DeSorbo and Tyler, 1953
DeSorbo, W.; Tyler, W.W., The specific heat of graphite from 13 to 300°K, J. Chem. Phys., 1953, 21, 1660-1663. [all data]

Jacobs and Parks, 1934
Jacobs, C.J.; Parks, G.S., Thermal data on organic compounds. XIV. Some heat capacity, entropy and free energy data for cyclic substances, J. Am. Chem. Soc., 1934, 56, 1513-1517. [all data]

Marshall and McKellar, 1986
Marshall, M.D.; McKellar, A.R.W., The «nu»2 fundamental band of triplet CH2, J. Chem. Phys., 1986, 85, 7, 3716, https://doi.org/10.1063/1.450943 . [all data]


Notes

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