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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:
630-08-0
Molecular Weight:
28.01
Beilstein:
3587264
EC Number:
211-128-3
MDL number:
MFCD00011320
UNSPSC Code:
12142100
PubChem Substance ID:
24857760
NACRES:
NA.22

vapor density

0.97 (vs air)

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

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Legal Information

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

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control valve

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hose barb

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purge valve

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recommended

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regulator

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Signal Word

Danger

Hazard Statements

H220,H280,H331,H360D,H372

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Luc Rochette et al.
Pharmacology & therapeutics, 137(2), 133-152 (2012-10-03)
Small amounts of carbon monoxide (CO) are continuously produced in mammals. The intracellular levels of CO can increase under stressful conditions following the induction of HO-1 (heme oxygnase-1), a ubiquitous enzyme responsible for the catabolism of heme. Unlike nitric oxide
Mechanistic features of catalytic carbon monoxide hydrogenation reactions.
Muetterties E, et al.
Chemical Reviews, 79(6), 479-490 (1979)
Transition metal-catalyzed cyclocarbonylation in organic synthesis
Iwao and Omae
Coordination Chemistry Reviews, 255, 139-160 (2011)
Barbara Wegiel et al.
Trends in molecular medicine, 19(1), 3-11 (2012-11-13)
Networking between cells is critical for proper functioning of the cellular milieu and is mediated by cascades of highly regulated and overlapping signaling molecules. The enzyme heme oxygenase-1 (HO-1) generates three separate signaling molecules through the catalysis of heme -
Giuseppe Lippi et al.
Clinical biochemistry, 45(16-17), 1278-1285 (2012-06-19)
The toxicity of carbon monoxide has been recognized for long throughout history and is unquestionably the leading cause of unintentional poisoning deaths in the Western countries. The severity of poisoning is dependent upon environmental and human factor. The leading pathophysiological
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