What is a Cobalt Hydroxide (Co(OH)₂)?

Cobalt Hydroxide (Co(OH)₂) is an inorganic compound and a hydroxide of cobalt. It typically appears as a blue or blue-green powder and is poorly soluble in water. It is chemically stable in alkaline environments and plays a crucial role in various industrial applications. One of the major uses of cobalt hydroxide is in the production of rechargeable batteries, such as lithium-ion and nickel-metal hydride (NiMH) batteries, where cobalt compounds are essential for improving battery performance. Cobalt hydroxide is also used to adjust the oxidation state of cobalt and to convert it into other cobalt compounds.

Additionally, cobalt hydroxide is used as a pigment in art and ceramics, where it imparts a blue color. It also serves as a catalyst or reagent in chemical reactions, particularly in organic synthesis.

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