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60811

Sigma-Aldrich

Cobalt carbonyl

moistened with hexane (hexane 1-10%), ≥90% (Co)

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Synonym(s):
Cobalt tetracarbonyl dimer, Di-μ-carbonylhexacarbonyldicobal, Octacarbonyldicobalt, Dicobalt octacarbonyl
Linear Formula:
Co2(CO)8
CAS Number:
Molecular Weight:
341.95
MDL number:
PubChem Substance ID:
NACRES:
NA.22

assay

≥90% (Co)

form

solid

quality

moistened with hexane (hexane 1-10%)

reaction suitability

core: cobalt
reagent type: catalyst

storage temp.

2-8°C

SMILES string

[Co++].[Co++].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+]

InChI

1S/8CO.2Co/c8*1-2;;/q;;;;;;;;2*+2

InChI key

MQIKJSYMMJWAMP-UHFFFAOYSA-N

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1 of 4

This Item
245259727970262676
vibrant-m

60811

Cobalt carbonyl

vibrant-m

727970

Cobalt(II) acetylacetonate

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

form

solid

form

liquid

form

powder

form

-

assay

≥90% (Co)

assay

-

assay

≥99.0% (KT)

assay

98%

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

-

storage temp.

-

quality

moistened with hexane (hexane 1-10%)

quality

-

quality

-

quality

-

Application

  • Cobalt carbonyl [Co2(CO)8] is commonly used as a catalyst in the hydroformylation (oxo reaction) of alkenes.
  • Along with pyridine, it can be used as a catalyst in the carboxylation of alkenes into corresponding acids and esters.
  • It is employed as a key precursor in the preparation of cobalt platinum (CoPt3), cobalt sulfide (Co3S4) and cobalt selenide (CoSe2) nanocrystals.
  • It is also used as a reagent in Pauson-Khand cyclizations and Nicholas reaction.

signalword

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Carc. 2 - Repr. 2 - Self-heat. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation

target_organs

Nervous system

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

WGK 3

flash_point_f

-9.4 °F

flash_point_c

-23 °C

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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M Varón et al.
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Journal of the American Chemical Society, 108(11), 3128-3130 (1986)
Octacarbonyldicobalt.
Encyclopedia of Reagents for Organic Synthesis, Second Edition, 1-26 (2014)
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Reproducible growth of narrow size distributed ε-Co nanoparticles with a specific size requires full understanding and identification of the role of essential synthesis parameters for the applied synthesis method. For the hot injection methodology, a significant discrepancy with respect to
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