Cupric Oxide is an inorganic compound with the chemical formula CuO. Mainly used in wood preservatives, ceramics, and mineral supplements for animal feed. Cupric Oxide can be used as a dietary ingredient and as a nutrient. Copper aids in the absorption of iron, in the formation of red blood cells and the proper bone formation and maintenance.Cupric oxide nanoparticles are used industrially to produce paints, and act as catalysts in organic synthesis due to its corrosion preventative properties.