Graphite
- Formula: C
- Molecular weight: 12.0107
- IUPAC Standard InChI: InChI=1S/C
- IUPAC Standard InChIKey: OKTJSMMVPCPJKN-UHFFFAOYSA-N
- CAS Registry Number: 7782-42-5
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
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Condensed phase thermochemistry data
Go To: Top, Phase change 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:
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°solid,1 bar | 1.4 ± 0.1 | cal/mol*K | AVG | N/A | Average of 10 values; Individual data points |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 1.97 | 298. | Yin, Ziru, et al., 1991 | T = 300 to 420 K. Cp value reported at 298 K is 0.685 J/kg*K.; DH |
| 2.402 | 300. | Isaacs and Wang, 1981 | T = 80 to 300 K. Cp = 8.729x10-4T + 6.27x10-6T2 + 6.309x10-9T3 J/g*K. Value calculated from equation.; DH |
| 2.01 | 300. | Taylor and Groot, 1980 | T = 300 to 2400 K.; DH |
| 2.0599 | 300. | Butland and Maddison, 1973 | T = 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 |
| 1.94 | 298.15 | Markelov, Volga, et al., 1973 | T = 1 to 3000 K. Cp = 0.6752 J/g*K.; DH |
| 1.94 | 298. | Sheindlin, Belevich, et al., 1972 | T = 273 to 3650 K. Cp calculated from equation applicable to the temperature range 273 to 1000 K.; DH |
| 2.146 | 298.15 | Lutcov, Volga, et al., 1970 | T = 57 to 320 K.; DH |
| 2.025 | 298.15 | Lutcov, Volga, et al., 1970 | T = 52 to 315 K.; DH |
| 1.925 | 298.15 | Lutcov, Volga, et al., 1970 | T = 51 to 311 K.; DH |
| 1.925 | 298.15 | Lutcov, Volga, et al., 1970 | T = 51 to 311 K.; DH |
| 2.05 | 300. | McDonald, 1965 | T = 298 to 1723 K.; DH |
| 2.136 | 298.15 | DeSorbo and Tyler, 1957 | T = 13 to 300 K.; DH |
| 1.874 | 298.15 | DeSorbo, 1955 | T = 17 to 300 K.; DH |
| 2.038 | 298.15 | DeSorbo and Tyler, 1953 | T = 13 to 300 K.; DH |
| 2.031 | 293.5 | Jacobs and Parks, 1934 | T = 93 to 294 K. Value is unsmoothed experimental datum.; DH |
Phase change data
Go To: Top, Condensed 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 by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Ttriple | 5000. | K | N/A | Marshall and McKellar, 1986 | Uncertainty assigned by TRC = 300. K |
| Quantity | Value | Units | Method | Reference | Comment |
| Ptriple | 100.67 | atm | N/A | Marshall and McKellar, 1986 | Uncertainty assigned by TRC = 14.80 atm |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
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 ν2 fundamental band of triplet CH2,
J. Chem. Phys., 1986, 85, 7, 3716, https://doi.org/10.1063/1.450943
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid Ptriple Triple point pressure S°solid,1 bar Entropy of solid at standard conditions (1 bar) Ttriple Triple point temperature - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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