Methane
- Formula: CH4
- Molecular weight: 16.0425
- IUPAC Standard InChIKey: VNWKTOKETHGBQD-UHFFFAOYSA-N
- CAS Registry Number: 74-82-8
- 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: Marsh gas; Methyl hydride; CH4; Fire Damp; R 50; Biogas; R 50 (refrigerant)
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Antoine Equation Parameters
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
90.99 to 189.99 | 3.9895 | 443.028 | -0.49 | Prydz and Goodwin, 1972 | Coefficents calculated by NIST from author's data. |
96.89 to 110.19 | 2.00253 | 125.819 | -48.823 | Regnier, 1972 | Coefficents calculated by NIST from author's data. |
93.04 to 107.84 | 3.80235 | 403.106 | -5.479 | Cutler and Morrison, 1965 | Coefficents calculated by NIST from author's data. |
110.00 to 190.5 | 4.22061 | 516.689 | 11.223 | Hestermans and White, 1961 | Coefficents calculated by NIST from author's data. |
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References
Go To: Top, Antoine Equation Parameters, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Prydz and Goodwin, 1972
Prydz, R.; Goodwin, R.D.,
Experimental Melting and Vapor Pressures of Methane,
J. Chem. Thermodyn., 1972, 4, 1, 127-133, https://doi.org/10.1016/S0021-9614(72)80016-8
. [all data]
Regnier, 1972
Regnier, J.,
Tension de Vapeur de L'Ethane Entre 80 et 135 K,
J. Chim. Phys., 1972, 69, 942-944. [all data]
Cutler and Morrison, 1965
Cutler, A.J.B.; Morrison, J.A.,
Excess Thermodynamic Functions for Liquid Mixtures of Methane+Propane,
Trans. Faraday Soc., 1965, 61, 429-442, https://doi.org/10.1039/tf9656100429
. [all data]
Hestermans and White, 1961
Hestermans, P.; White, David,
THE VAPOR PRESSURE, HEAT OF VAPORIZATION AND HEAT CAPACITY OF METHANE FROM THE BOILING POINT TO THE CRITICAL TEMPERATURE,
J. Phys. Chem., 1961, 65, 2, 362-365, https://doi.org/10.1021/j100820a044
. [all data]
Notes
Go To: Top, Antoine Equation Parameters, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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