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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Phase change data
Go To: Top, IR Spectrum, Mass spectrum (electron ionization), 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, Mass spectrum (electron ionization), References, Notes
Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Phase change data, 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
NIST MS number | 19 |
References
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), 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, Mass spectrum (electron ionization), 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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