Dicobalt Octacarbonyl

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

CAS Number 10210-68-1 | MDL Number MFCD00016024 

Product code	CO0681
CAS number	10210-68-1
Assay (purity)	95%
Purity method	by titration: % Co = 33.5 %
Molecular weight	341.95
Form	solid
Appearance	orange or dark red crystals
Melting point	51 to 52 °C
Molecular formula	C8Co2O8
Linear formula	Co2(CO)8
Packaging	glassware/metal containers/bubblers

Dicobalt octacarbonyl is used for atomic layer deposition by semiconductors 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 specific surfaces, enabling superior film performance regarding 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 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

UN	3190
Hazardous class	4.2
Packing group	II
Pictograms
Signal word	DANGER
Hazard statements	H251-H302-H-304-H315-H317-H330-H351-H361-H412
Precautionary statements	P201-P260-P273-P280-P304 + P340 + P310-P403 + P233
Transport description	SELF-HEATING SOLID, INORGANIC, N.O.S. (Octacarbonyldicobalt)
In TSCA registry	Yes

First Aid Measures

General advice	Consult a physician. Show this safety data sheet to the doctor in attendance. Move out of the dangerous area.
Eye contact	Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Skin contact	Wash off with soap and plenty of water. Consult a physician.
Inhalation	If breathed in, move person into the fresh air. If not breathing, give artificial respiration. Consult a physician.
If swallowed	Do 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# 005/613Lot# 005/603 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 CID	25049
SMILES	O=C=[Co]1(=C=O)(=C=O)C(=O)[Co](=C=O)(=C=O)(=C=O)C1=O
IUPAC Name	Octacarbonyldicobalt(Co—Co)
InchI Identifier	InChI=1S/8CO.2Co/c8*1-2;;/q;;;;;;;;2*+2
InchI Key	MQIKJSYMMJWAMP-UHFFFAOYSA-N

Known applications and external links

• Pauson, P. L.; Khand, I. U. (1977). “Uses of Cobalt-Carbonyl Acetylene Complexes in Organic Synthesis”. Ann. N. Y. Acad. Sci. 295 (1): 2–14.
• Teobald, Barry J. (2002). “The Nicholas reaction: The use of dicobalt hexacarbonyl-stabilised propargylic cations in synthesis”. Tetrahedron (Review). 58 (21): 4133–4170.

With Dicobalt Octacarbonyl other customers often ask:

• (3,3-Dimethyl-1-butyne)dicobalt hexacarbonyl
• Cobalt tricarbonyl nitrosyl
• Dicarbonylcyclopentadienylcobalt
• Bis(N,N-di-tert-butyl-1,4-diaza-1,3-butadienyl)cobalt

Ereztech synthesizes and sells additional Co-compounds.

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