Green Nickel Oxide is an insoluble thermally stable Nickel source suitable for glass, optic and ceramic applications. Nickel oxide is a green crystalline solid and the primary oxide of nickel. Although rare in nature several million kilograms are produced annually. In some commercial processes, green nickel oxide is made by heating a mixture of nickel powder and water at 1000 °C, the rate for this reaction can be increased by the addition of NiO. The simplest and most successful method of preparation is through pyrolysis of nickel(II) compounds such as the hydroxide, nitrate, and carbonate, which yield a light green powder.
