Ni solution is widely used in electroplating processes to coat various metal surfaces with a thin layer of nickel, enhancing their durability, corrosion resistance, and aesthetic appeal. It is also employed in the manufacturing of rechargeable batteries, particularly nickel-cadmium and nickel-metal hydride batteries, due to its excellent electrochemical properties. In the chemical industry, it serves as a catalyst in hydrogenation reactions, facilitating the conversion of unsaturated compounds into saturated ones. Additionally, Ni solution is utilized in the production of alloys like stainless steel and superalloys, which are essential in aerospace, automotive, and construction industries for their strength and heat resistance. It also finds application in wastewater treatment as a component in processes that remove heavy metals and other contaminants.