Carbon monoxide
- Formula: CO
- Molecular weight: 28.0101
- IUPAC Standard InChIKey: UGFAIRIUMAVXCW-UHFFFAOYSA-N
- CAS Registry Number: 630-08-0
- 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: Carbon oxide (CO); CO; Exhaust gas; Flue gas; Carbonic oxide; Carbon oxide; Carbone (oxyde de); Carbonio (ossido di); Kohlenmonoxid; Kohlenoxyd; Koolmonoxyde; NA 9202; Oxyde de carbone; UN 1016; Wegla tlenek; Carbon monooxide
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- Information on this page:
- Other data available:
- Gas phase thermochemistry data
- Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 150, reactions 151 to 200, reactions 201 to 249
- Henry's Law data
- Gas phase ion energetics data
- Ion clustering data
- Mass spectrum (electron ionization)
- Constants of diatomic molecules
- Fluid Properties
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Phase change data
Go To: Top, IR Spectrum, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 81.63 | K | N/A | Mullins, Kirk, et al., 1963 | Uncertainty assigned by TRC = 0.05 K; TRC |
Tboil | 81.61 | K | N/A | Clayton and Giauque, 1932 | Uncertainty assigned by TRC = 0.07 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 67.95 | K | N/A | Gill and Morrison, 1966 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.06 K; TRC |
Ttriple | 68.12 | K | N/A | Mullins, Kirk, et al., 1963 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.05 K; TRC |
Ttriple | 68.09 | K | N/A | Clayton and Giauque, 1932 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.07 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 134.45 | K | N/A | Cardoso, 1915 | Uncertainty assigned by TRC = 0.4 K; 4 determinations with same result; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 34.9875 | bar | N/A | Cardoso, 1915 | Uncertainty assigned by TRC = 0.3039 bar; TRC |
Pc | 34.9875 | bar | N/A | Cardoso, 1915 | Uncertainty assigned by TRC = 0.3039 bar; TRC |
Pc | 35.1496 | bar | N/A | Cardoso, 1915 | Uncertainty assigned by TRC = 0.3039 bar; TRC |
Pc | 35.2104 | bar | N/A | Cardoso, 1915 | Uncertainty assigned by TRC = 0.3039 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 11.1 | mol/l | N/A | Cardoso, 1915 | Uncertainty assigned by TRC = 0.04 mol/l; extrapolation of rectilinear diameter to Tc; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
6.0 | 93. | A | Stephenson and Malanowski, 1987 | Based on data from 68. to 108. K.; AC |
6.0 | 81. | N/A | Clayton and Giauque, 1932, 2 | Based on data from 69. to 83. K.; AC |
6.0 | 81. | C | Clayton and Giauque, 1932, 2 | AC |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
7.6 | 58. | N/A | Stephenson and Malanowski, 1987 | Based on data from 54. to 61. K.; AC |
8.1 | 60. | A | Stull, 1947 | Based on data from 51. to 68. K.; AC |
7.9 | 62. | A | Crommelin, Bijleveld, et al., 1931 | Based on data from 57. to 68. K.; AC |
IR Spectrum
Go To: Top, Phase change data, References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
References
Go To: Top, Phase change data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mullins, Kirk, et al., 1963
Mullins, J.C.; Kirk, B.S.; Ziegler, W.T.,
, U. S. A. E. C. NP-13862, 1963. [all data]
Clayton and Giauque, 1932
Clayton, J.O.; Giauque, W.F.,
The Heat Capacity and Entropy of Carbon Monoxide. Heat of Vaporization Vapor Pressure of Solid and Liquid. Free Energy to 5000 K from Spectroscopic Data,
J. Am. Chem. Soc., 1932, 54, 2610. [all data]
Gill and Morrison, 1966
Gill, E.K.; Morrison, J.A.,
Thermodynamic Properties of Condensed CO,
J. Chem. Phys., 1966, 45, 1585. [all data]
Cardoso, 1915
Cardoso, E.,
Study of the Critical Point of Several Difficultly LIquifiable Gases: Nitrogen, Carbon Monoxide, Oxygen and Methane,
J. Chim. Phys. Phys.-Chim. Biol., 1915, 13, 312. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Clayton and Giauque, 1932, 2
Clayton, J.O.; Giauque, W.F.,
The heat capacity and entropy of carbon monoxide. Heat of vaporization. Vapor pressures of solid and liquid. Free energy to 5000°K. From spectroscopic data,
J. Am. Chem. Soc., 1932, 54, 2610-2626. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Crommelin, Bijleveld, et al., 1931
Crommelin, C.A.; Bijleveld, W.J.; Brown, E.G.,
Proc. R. Acad. Sci. Amsterdam, 1931, 34, 1314. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Ttriple Triple point temperature ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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