September 2010
NIOSH Publication Number 2010-168c

Cobalt carbonyl (as Co)

Synonyms & Trade Names
di-mu-Carbonylhexacarbonyldicobalt, Cobalt octacarbonyl, Cobalt tetracarbonyl dimer, Dicobalt carbonyl, Dicobalt Octacarbonyl, Octacarbonyldicobalt
CAS No.
10210-68-1
RTECS No.
GG0300000
DOT ID & Guide
Formula
C8Co2O8
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: TWA 0.1 mg/m3
OSHA PEL
†: none
Measurement Methods

None available
Physical Description
Orange to dark-brown, crystalline solid. [Note: The pure substance is white.]
MW:
341.9
BP:
126°F (Decomposes)		 MLT: 124°F
Sol:
Insoluble
VP:
0.7 mmHg
IP:
?
Sp.Gr:
1.87
Fl.P:
NA
UEL:
NA
LEL:
NA
Noncombustible Solid, but flammable carbon monoxide is emitted during decomposition.
Incompatibilities & Reactivities
Air [Note: Decomposes on exposure to air or heat; stable in atmosphere of hydrogen & carbon monoxide.]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, mucous membrane; cough, decreased pulmonary function, wheezing, dyspnea (breathing difficulty); in animals: liver, kidney injury, pulmonary edema
Target Organs
Eyes, skin, respiratory system, blood, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 0976