Used primarily in organic synthesis as a catalyst, particularly in reactions involving the formation of carbon-carbon bonds. It is also employed in the preparation of nickel-based complexes, which are utilized in various chemical processes. In electroplating, it serves as a source of nickel ions for coating surfaces with a thin layer of nickel, enhancing durability and corrosion resistance. Additionally, it finds application in research laboratories for studying the properties and behavior of nickel compounds in different chemical environments.