Carbon monoxide (data page)

This page provides supplementary chemical data on carbon monoxide.

Material safety data sheet

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The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the material safety data sheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions.

Structure and properties

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Structure and properties
Index of refraction, nD 1.0003364
Abbe number ?
Dielectric constant, εr ? ε0 at ? °C
Bond strength 1850 N/m
Bond length 0.111 nm
Bond energy 1079 kJ/mol
Bond angle Linear
Magnetic susceptibility ?

Thermodynamic properties

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Phase behavior
Triple point 67.9 K (−205.1 °C), 15.35 kPa
Critical point 132.7 K (−140.3 °C), 3498 kPa, 11.1 mol/L (3.1×102 kg/m3)
Std enthalpy change
of fusion
, ΔfusHo
? kJ/mol
Std entropy change
of fusion
, ΔfusSo
? J/(mol K)
Std enthalpy change
of vaporization
, ΔvapHo
? kJ/mol
Std entropy change
of vaporization
, ΔvapSo
? J/(mol K)
Std enthalpy change
of sublimation
, ΔsubHo
8 kJ/mol (at 51–68 K)
Std entropy change
of sublimation
, ΔsubSo
? J/(mol·K)
Solid properties
Std enthalpy change
of formation
, ΔfHosolid
−110.5 kJ/mol
Standard molar entropy,
Sosolid
? J/(mol K)
Heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation
, ΔfHoliquid
? kJ/mol
Standard molar entropy,
Soliquid
? J/(mol K)
Heat capacity, cp ? J/(mol K)
Gas properties
Std enthalpy change
of formation
, ΔfHogas
−110.53 kJ/mol
Std enthalpy change
of combustion
, ΔcHogas
−283.0 kJ/mol
Standard molar entropy,
Sogas
197.66 J/(mol K)
Heat capacity, cp 29 J/(mol K)

Spectral data

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UV-Vis
λmax 55 nm
Extinction coefficient, ε ?
IR
Major absorption bands 2143 cm−1
13CO 2099.2 ± 4 cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments
 

References

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