6 The sponge electrode is then positioned inside a vacuum arc furnace for melting. During this water-cooled, copper container, an electric arc is used to melt the sponge electrode to sort an ingot. The compound is used in soaps and clinical implants, insulators and synthetic materials. Non stick baking supplies, https://bendingmachine15825.atualblog.com/42168171/fascination-about-copper-powder-cas