Agent Name

Cobaltocene

CAS Number

1277-43-6

Formula

C10-H10-Co

Major Category

Metals

Synonyms

Bis(cyclopentadienyl)cobalt; Cobalt, bis(eta5-2,4-cyclopentadien-1-yl)-; Dicyclopentadienylcobalt; Kobaltocen [Czech]; Cobalt, di-pi-cyclopentadienyl-; [ChemIDplus] Bis(cyclopentadienyl)cobalt(II); Bis(eta-cyclopentadienyl)cobalt; Bis(eta5-cyclopentadienyl)cobalt; Cobalt, dicyclopentadienyl-; Di-pi-cyclopentadienyl cobalt; [CAMEO] UN1325

Category

Organic Compounds, Metal Salts

Description

Black-purple or black solid; Insoluble in water; [CAMEO] Black-violet crystals; [Acros Organics MSDS]

Sources/Uses

Used to catalyze synthesis of pyridines from alkynes and nitriles, as a polymerization inhibitor of olefins, in Diels-Alder reactions, as a paint drier, and as an oxygen stripping agent; [NTP]

Comments

Intraperitoneal LD50 (mouse) = 80 mg/kg; [RTECS] A strong reducing agent; Readily oxidized by air and water; Sensitive to air and light exposure; [CAMEO] Highly reactive; Toxic by ingestion; [NTP] An irritant; Ingestion may cause CNS depression; [Acros Organics MSDS] See "Cobalt."

Exposure Assessment
BEI

Cobalt in urine = 15 ug/L; sample at end of shift at end of workweek;

TLV (ACGIH)

0.02 mg/m3, as Co

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Flammable solid, n.o.s."

Links to Other NLM Databases
Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: