Cobalt(II) chloride is an inorganic compound of cobalt and chlorine, with the formula is CoCl₂.6H₂O .It is a purple pink crystalline solid. which is one the laboratory reagent.
Cobalt(II) chloride hexahydrate has a cobalt ion surrounded by a tetragonal arrangement of chloride ligands. Four water molecules occupy a square plane about cobalt while chloride ions occupy axial positions.Its crystals belong to the monoclinic lattice system.