Cobalt oleate

Cobalt_oleate.svg

Cobalt oleate is a chemical compound that consists of cobalt and oleic acid. It is commonly used as a catalyst in various chemical reactions and as a drier in paints and varnishes.

Chemical Properties

Cobalt oleate is an organometallic compound with the chemical formula Co(C_18H_33O_2)_2. It is typically a dark red or purple solid that is soluble in organic solvents such as benzene, toluene, and chloroform. The compound is known for its ability to catalyze the oxidation of organic substances, making it valuable in industrial applications.

Synthesis

Cobalt oleate can be synthesized by reacting cobalt(II) chloride or cobalt(II) sulfate with sodium oleate in an aqueous solution. The reaction results in the formation of cobalt oleate and sodium chloride or sodium sulfate as by-products. The product is then extracted using an organic solvent and purified through recrystallization.

Applications

Catalysis

Cobalt oleate is widely used as a catalyst in the polymerization of olefins and in the production of polyester resins. It is also employed in the oxidation of alkenes and alkynes.

Paints and Varnishes

In the paint and varnish industry, cobalt oleate acts as a drier, accelerating the drying process of oil-based paints and varnishes. It helps in the formation of a hard, durable film by promoting the oxidation and polymerization of the drying oils.

Safety and Handling

Cobalt oleate should be handled with care, as cobalt compounds can be toxic if ingested or inhaled. Proper personal protective equipment (PPE) such as gloves and safety goggles should be worn when handling the compound. It should be stored in a cool, dry place away from incompatible substances.

See Also

• Cobalt
• Oleic acid
• Catalyst
• Drier (paint)
• Organometallic chemistry