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295116

Sigma-Aldrich

Carbon monoxide

≥99.0%

Synonym(s):

Carbon oxide (CO)

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About This Item

Empirical Formula (Hill Notation):
CO
CAS Number:
Molecular Weight:
28.01
Beilstein:
3587264
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22

vapor density

0.97 (vs air)

Quality Level

Assay

≥99.0%

autoignition temp.

1128 °F

expl. lim.

74 %

bp

−191.5 °C (lit.)

mp

−205 °C (lit.)

SMILES string

[C-]#[O+]

InChI

1S/CO/c1-2

InChI key

UGFAIRIUMAVXCW-UHFFFAOYSA-N

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General description

Carbon monoxide is a versatile building block used in carbonylation reactions and to prepare single-walled carbon nanotubes.

Application

Carbon monoxide can be used in the following applications:
  • Transition-metal-catalyzed carbonylation reactions.
  • Insertion of carbon monoxide in metal-carbon bonds during copolymerization reactions.
  • To grow single-wall carbon nanotubes (SWNT) via disproportionation reaction catalyzed by molybdenum particles.

Catalytic hydrogenation of carbon monoxide over transition metals catalysts to form hydrocarbons has been reported.

Packaging

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:
  • Aldrich® lecture-bottle station systems
  • Aldrich® lecture-bottle gas regulators

Other Notes

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Inhalation - Flam. Gas 1A - Press. Gas Compr. Gas - Repr. 1A - STOT RE 1 Inhalation

Target Organs

Heart

Storage Class Code

2A - Gases

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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