Commercially, Silicon is purified by heating sand and carbon in An electrical furnace. A molten salt electrolysis system is used to obtain ultrapure silicon. Silicon is alloyed with aluminum to be used in engines as being the presence of silicon improves the metal’s castability. Silicon can improve iron’s magnetic properties; https://glass-lined-steel-pipe37036.timeblog.net/72086067/5-simple-techniques-for-sic-abrasive