Dicobalt Octacarbonyl  

Synonym: Cobalt carbonyl, Cobalt tetracarbonyl dimer, Octacarbonyldicobalt, Cobalt Octacarbonyl 

CAS Number 10210-68-1 | MDL Number MFCD00016024 

Cobalt carbonyl Chemical-Structure

Product codeCO0681
CAS number10210-68-1
Assa (purity)95%
Purity methodby titration:% Co = 33.5 %
Metal purity95%+-Co
Molecular weight341.95
Appearanceorange or dark red crystals
Melting point51 to 52 °C
Molecular formulaC8Co2O8
Linear formulaCo2(CO)8
Packagingglassware/metal containers/bubblers

Dicobalt octacarbonyl is used for atomic layer deposition by the semiconductor and related industries. Surfaces for such deposition can include metals, metal nitrides, metal silicides, and metal oxides. This product is valued for its ability to be a precursor for the selective deposition of cobalt-containing films onto on specific surfaces, enabling superior film performance in regards to continuity, uniformity, and low resistance. In organometallic chemistry and organic synthesis Co2(CO)8 is a reagent and catalyst used for hydroformylation: the conversion of alkenes into aldehydes. This product is highly reactive towards alkynes, so it is sometimes used as an alkyne-protecting compound. Synthesis of this product has been reported (see the links below).

Ereztech manufactures and sells of Dicobalt Octacarbonyl in small and bulk volumes. Glass ampules and bottles or metal ampules and bubblers are available for packaging. For additional information or details about purchasing Dicobalt Octacarbonyl contact us at sales@ereztech.com

Safety information

Hazardous class4.2
Packing groupII
Signal wordDANGER
Hazard statementsH251-H302-H-304-H315-H317-H330-H351-H361-H412
Precautionary statementsP201-P260-P273-P280-P304 + P340 + P310-P403 + P233
Transport descriptionSELF-HEATING SOLID, INORGANIC, N.O.S. (Octacarbonyldicobalt)
In TSCA registryYes

First Aid Measures

General adviceConsult a physician. Show this safety data sheet to the doctor in attendance. Move out of the dangerous area.
Eye contactRinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Skin contactWash off with soap and plenty of water. Consult a physician.
InhalationIf breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
If swallowedDo NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.


Certificates of Analysis (CoA)

If you don’t see the needed lot of Dicobalt octacarbonyl below please contact customer support at sales@ereztech.com

Lot# 005/613 Lot# 005/603 Lot#005/597 Lot# 005/623 Lot# 005/668 Lot# 005/669 Lot# 005/670 Lot# 005/694 Lot# 005/702

External identifiers for Cobalt tetracarbonyl dimer 

Pubchem CID25049
IUPAC NameOctacarbonyldicobalt(Co—Co)
InchI IdentifierInChI=1S/8CO.2Co/c8*1-2;;/q;;;;;;;;2*+2

Known applications and external links

With Dicobalt Octacarbonyl other customers often ask:

Ereztech synthesizes and sells additional Co-compounds.

To purchase Dicobalt Octacarbonyl contact us at sales@ereztech.com