Used as a catalyst precursor in chemical synthesis and organic reactions, particularly in hydrogenation and oxidation processes. Employed in the production of nickel-based batteries and electronic components due to its electrochemical properties. Serves as a pigment in ceramics and glass, providing green to blue-green coloration. Applied in the preparation of nickel salts and metallic nickel powders for plating and alloy manufacturing. Also utilized in some industrial coatings and corrosion-resistant materials.