Chemical Properties
dark violet crystals
Uses
Polymerization inhibitor of olefins up to 200C,
Diels–Alder reaction, catalyst, paint drier, oxygen
stripping agent.
Uses
Bis(cyclopentadienyl)cobalt is used to catalyze the preparation of pyridines from alkynes and nitriles. It acts as a polymerization inhibitor of olefins. It is a common one-electron reducing agent in the laboratory. It reacts with carbon monoxide to prepare cobalt(I) derivative, cyclopentadienylcobalt dicarbonyl. It also serves as an internal standard in cyclic voltametry. Further, it finds use in Diels-Alder reactions. In addition to this, it is used as a paint drier and as an oxygen stripping agent.
Definition
A metallocene.
General Description
Black-purple crystals or black solid. Sublimes at 104°F and 0.1 mm Hg.
Air & Water Reactions
Air-sensitive. Highly flammable. Insoluble in water.
Reactivity Profile
BIS(CYCLOPENTADIENYL)COBALT is very sensitive to air and is readily oxidized. BIS(CYCLOPENTADIENYL)COBALT is also sensitive to exposure to light. Readily oxidized by water and dilute acids .
Hazard
Toxic by ingestion.
Health Hazard
ACUTE/CHRONIC HAZARDS: BIS(CYCLOPENTADIENYL)COBALT is toxic by ingestion.
Fire Hazard
Vendor information indicates that BIS(CYCLOPENTADIENYL)COBALT is flammable.
Safety Profile
Poison by intraperitoneal route.Questionable carcinogen with experimental tumorigenicdata. Mutation data reported. When heated todecomposition it emits acrid smoke and fumes.
