6 The sponge electrode is then placed within a vacuum arc furnace for melting. With this water-cooled, copper container, An electrical arc is used to soften the sponge electrode to sort an ingot. Paget's condition (a bone condition): Use strontium with caution. The bones of individuals with Paget's ailment appear https://augustttsqn.blogdanica.com/35813060/how-cupric-oxide-can-save-you-time-stress-and-money