Methane
- Formula: CH4
- Molecular weight: 16.0425
- IUPAC Standard InChI: InChI=1S/CH4/h1H4
- 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)
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Gas phase thermochemistry data
- Phase change data
- Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 112
- Henry's Law data
- Gas phase ion energetics data
- Ion clustering data
- IR Spectrum
- Mass spectrum (electron ionization)
- Vibrational and/or electronic energy levels
- Fluid Properties
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
- NIST / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data)
- NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Triple point temperature
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.
Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Ttriple (K) | Reference | Comment |
|---|---|---|
| 90.68 | Friend, Ely, et al., 1989 | Uncertainty assigned by TRC = 0.0003 K; TRC |
| 90.68 | Younglove and Ely, 1987 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 90.68 | Kleinrahm and Wagner, 1986 | Uncertainty assigned by TRC = 0.01 K; TRC |
| 90.68 | Inaba and Mitsui, 1978 | Uncertainty assigned by TRC = 0.005 K; for "normal methane" both on IPTS-68; TRC |
| 90.67 | Inaba and Mitsui, 1978 | Uncertainty assigned by TRC = 0.005 K; for "equilibrium methane both on IPTS-68; TRC |
| 90.68 | Pavese, Cagna, et al., 1976 | Uncertainty assigned by TRC = 0.005 K; TRC |
| 90.67 | Vogt and Pitzer, 1976 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.02 K; TRC |
| 90.68 | Kidnay, Lewis, et al., 1975 | Uncertainty assigned by TRC = 0.03 K; TRC |
| 90.68 | Goodwin, 1974 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 90.68 | Prydz and Goodwin, 1972 | Uncertainty assigned by TRC = 0.002 K; TRC |
| 90.67 | Simon and Knobler, 1971 | Uncertainty assigned by TRC = 0.01 K; TRC |
| 90.66 | Goodwin, 1970 | Uncertainty assigned by TRC = 0.05 K; TRC |
| 88.65 | Guereca, Richardson, et al., 1967 | Uncertainty assigned by TRC = 0.2 K; TRC; Data excluded from overall average |
| 90.64 | Fuks, Legros, et al., 1965 | Uncertainty assigned by TRC = 0.05 K; TRC |
| 90.66 | Klipping and Schmidt, 1965 | Uncertainty assigned by TRC = 0.06 K; TRC |
| 90.67 | Colwell, Gill, et al., 1963 | Uncertainty assigned by TRC = 0.005 K; Triple point measured in calorimeter with Pt resistance thermometer calibrated against vapor pressure of oxygen.; TRC |
| 90.67 | Lovejoy, 1963 | TRC |
| 90.64 | Ziegler, Mullins, et al., 1962 | Uncertainty assigned by TRC = 0.05 K; TRC |
| 90.67 | Mathot, Staveley, et al., 1956 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 90.66 | Armstrong, Brickwedde, et al., 1955 | Uncertainty assigned by TRC = 0.01 K; TRC |
| 90.67 | Mathot, Staveley, et al., 1955 | Uncertainty assigned by TRC = 0.03 K; Triple point values are preliminary; TRC |
| 90.66 | Armstrong, Brickwedde, et al., 1953 | Uncertainty assigned by TRC = 0.02 K; TRC |
| 90.35 | Tickner and Lossing, 1951 | Uncertainty assigned by TRC = 0.5 K; from change in slope of obs. vapor pressure; TRC; Data excluded from overall average |
| 90.63 | Clusius and Popp, 1940 | TRC |
| 90.67 | Clusius and Weigand, 1940 | Uncertainty assigned by TRC = 0.1 K; See property X for dP/dT for c-l equil.; TRC |
| 90.68 | Freeth and Verschoyle, 1931 | Uncertainty assigned by TRC = 0.05 K; TRC |
| 90.65 | Parks and Huffman, 1931 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.15 K; TRC |
| 90.25 | Wiebe and Brevoort, 1930 | Uncertainty assigned by TRC = 0.15 K; TRC; Data excluded from overall average |
| 89.85 | Henning and Stock, 1921 | Uncertainty assigned by TRC = 0.2 K; Calculated from vapor pressure eq. of solid.; TRC; Data excluded from overall average |
| 90.000 | Crommelin, 1912 | Uncertainty assigned by TRC = 0.1 K; TRC; Data excluded from overall average |
| 90.8 | Hunter, 1906 | Uncertainty assigned by TRC = 1. K; TRC; Data excluded from overall average |
| 87.4 | Olszewski, 1885 | TRC; Data excluded from overall average |
References
Go To: Top, Triple point temperature, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Friend, Ely, et al., 1989
Friend, D.G.; Ely, J.F.; Ingham, H.,
Thermophysical Properties of Methane,
J. Phys. Chem. Ref. Data, 1989, 18, 2, 583-638, https://doi.org/10.1063/1.555828
. [all data]
Younglove and Ely, 1987
Younglove, B.A.; Ely, J.F.,
Thermophysical Properties of Fluids II. Methane, Ethane, Propane, Isobutane, and Normal Butane,
J. Phys. Chem. Ref. Data, 1987, 16, 577. [all data]
Kleinrahm and Wagner, 1986
Kleinrahm, R.; Wagner, W.,
Measurement and correlation of the equilibrium liquid and vapour densities & the vapour pres. along the coexistence curve of methane,
J. Chem. Thermodyn., 1986, 18, 739-60. [all data]
Inaba and Mitsui, 1978
Inaba, A.; Mitsui, K.,
Effects of Impurity and of Annealing on the Triple Point of Methane,
Jpn. J. Appl. Phys., 1978, 17, 1451. [all data]
Pavese, Cagna, et al., 1976
Pavese, F.; Cagna, G.; Ferri, D.,
The Triple Point of Pure Methane
in Proc. Int. Cryog. Eng. Conf. 6, 1976. [all data]
Vogt and Pitzer, 1976
Vogt, G.J.; Pitzer, K.S.,
Entropy and heat capacity of methane; spin-species conversion,
J. Chem. Thermodyn., 1976, 8, 1011. [all data]
Kidnay, Lewis, et al., 1975
Kidnay, A.J.; Lewis, K.L.; Calado, J.C.G.; Staveley, L.A.K.,
The thermodynamics of liquid mixtures of argon + methane,
J. Chem. Thermodyn., 1975, 7, 847-54. [all data]
Goodwin, 1974
Goodwin, R.D.,
The Thermodynamic Properties of Methane, from 90 to 500K at Pressures to 700 Bar, NBS Tech. Note (U. S.) No. 653, 1974. [all data]
Prydz and Goodwin, 1972
Prydz, R.; Goodwin, R.D.,
Experimental Melting and Vapor Pressures of Methane,
J. Chem. Thermodyn., 1972, 4, 127-33. [all data]
Simon and Knobler, 1971
Simon, M.; Knobler, C.M.,
The excess gibbs energy of liquid methane + carbon tetrafluoride at 98 k,
J. Chem. Thermodyn., 1971, 3, 657. [all data]
Goodwin, 1970
Goodwin, R.D.,
Thermophysical properties of methane: virial coefficients, vapor and melting pressures,
J. Res. Natl. Bur. Stand., Sect. A, 1970, 74, 655. [all data]
Guereca, Richardson, et al., 1967
Guereca, R.A.; Richardson, H.P.; Gordon, J.L.; Walker, J.D.; Cooper, J.L.,
, U.S. Bur. Mines Inform. Cir. IC 8317, 1967. [all data]
Fuks, Legros, et al., 1965
Fuks, S.; Legros, J.C.; Bellemans, A.,
Molar volumes of liquid methane and deuteromethane,
Physica (Amsterdam), 1965, 31, 606-12. [all data]
Klipping and Schmidt, 1965
Klipping, G.; Schmidt, F.,
Temperature Measurement with the Vapor Pressure Thermometer,
Kaeltetechnik, 1965, 17, 382-4. [all data]
Colwell, Gill, et al., 1963
Colwell, J.H.; Gill, E.K.; Morrison, J.A.,
Thermodynamic properties of CH4 and CD4. interpretation of the properties of the solids.,
J. Chem. Phys., 1963, 39, 635-53. [all data]
Lovejoy, 1963
Lovejoy, D.R.,
Some Boiling and Ptriple Points Below 0 deg C,
Nature (London), 1963, 197, 353. [all data]
Ziegler, Mullins, et al., 1962
Ziegler, W.T.; Mullins, J.C.; Kirk, B.S.,
Calculation of the Vapor Pressure and Heats of Vaporization and Sublimation of Liquids and Solids, Especially Below One Atmosphere Pressure. II. Argon, Ga. Inst. Technol., Eng. Exp. Stn., Proj. A-460, Tech. Rep. No. 2, 1962. [all data]
Mathot, Staveley, et al., 1956
Mathot, V.; Staveley, L.A.K.; Young, J.A.; Parsonage, N.G.,
Thermodynamic properties of the system methane + carbon monoxide at 90.67 K,
Trans. Faraday Soc., 1956, 52, 1488-500. [all data]
Armstrong, Brickwedde, et al., 1955
Armstrong, George T.; Brickwedde, F.G.; Scott, R.B.,
Vapor pressures of the methanes,
J. RES. NATL. BUR. STAN., 1955, 55, 1, 39, https://doi.org/10.6028/jres.055.005
. [all data]
Mathot, Staveley, et al., 1955
Mathot, V.; Staveley, L.A.K.; Young, J.A.; Parsonage, N.G.,
Thermodynamic properties of the system methane-carbon monoxide at 90 K,
J. Chem. Phys., 1955, 23, 1551. [all data]
Armstrong, Brickwedde, et al., 1953
Armstrong, G.T.; Brickwedde, F.G.; Scott, R.B.,
The Vapor Pressure of the Deuteromethanes,
J. Chem. Phys., 1953, 21, 1297. [all data]
Tickner and Lossing, 1951
Tickner, A.W.; Lossing, F.P.,
The Measurement of Low Vapor Pressures by Means of A Mass Spectrometer,
J. Phys. Colloid Chem., 1951, 55, 733-40. [all data]
Clusius and Popp, 1940
Clusius, K.; Popp, L.,
The molar heats, melting heats and heats of transformation of the condensed gases cd(4) and ch(3)d,
Z. Phys. Chem., Abt. B, 1940, 46, 63. [all data]
Clusius and Weigand, 1940
Clusius, K.; Weigand, K.,
Melting Curves of the Gases A, Kr, Xe, CH4, CH3D, CD4, C2H4, C2H6, COS, and PH3 to 200 Atmospheres Pressure. The Chane of Volume on Melting,
Z. Phys. Chem., Abt. B, 1940, 46, 1-37. [all data]
Freeth and Verschoyle, 1931
Freeth, F.A.; Verschoyle, T.T.H.,
Physical Constants of the System Methane-Hydrogen,
Proc. R. Soc. London, A, 1931, 130, 453. [all data]
Parks and Huffman, 1931
Parks, G.S.; Huffman, H.M.,
Some fusion and transition data for hydrocarbons,
Ind. Eng. Chem., 1931, 23, 1138-9. [all data]
Wiebe and Brevoort, 1930
Wiebe, R.; Brevoort, M.J.,
The heat capacity of saturated liquid nitrogen and methane from the boiling point to the critical temperature.,
J. Am. Chem. Soc., 1930, 52, 622. [all data]
Henning and Stock, 1921
Henning, F.; Stock, A.,
Saturation Pressure of Some Vapors Between 10 and -181 deg C,
Z. Phys., 1921, 4, 226-40. [all data]
Crommelin, 1912
Crommelin, C.-A.,
On the triple point of methane,
Proc. K. Ned. Akad. Wet., 1912, 15, 666. [all data]
Hunter, 1906
Hunter, M.A.,
The Molecular Aggregation of Liquified Gases,
J. Phys. Chem., 1906, 10, 330-60. [all data]
Olszewski, 1885
Olszewski, K.,
Liquefaction and solidification of methane and nitrogen dioxide.,
C. R. Hebd. Seances Acad. Sci., 1885, 100, 940-3. [all data]
Notes
Go To: Top, Triple point temperature, References
- Symbols used in this document:
Ttriple Triple point temperature - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.