Carbon monoxide (data page)

== Material safety data sheet

Structure and properties

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

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

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

Except where noted otherwise, data relate to standard ambient temperature and pressure.

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