Characteristic

Cobalt(II) acetate is the cobalt salt of acetic acid. It is commonly found as the tetrahydrate Co(CH₃CO₂)2·4 H₂O, abbreviated Co(OAc)₂·4 H₂O. It is used as a catalyst.

Chemical formula:Co(OOCCH₃)₂•4H₂O

Molar mass:249.08 g/mol 

Appearance: Pink crystals 

Odor: vinegar 

Density: 1.705 g/cm³ 

Melting point: 140 °C (284 °F; 413 K) 

Solubility in water:Soluble

Solubility: soluble in alcohol, dilute acids, pentyl acetate 

Magnetic susceptibility (χ):+11,000·10−6 cm3/mol

Refractive index (nD):1.542.

Application

It is used as an industrial catalyst that allow paints and varnishes to harden. Also as a precursor to various oil drying agents.