Quite superior purity silicon for semiconductors is attained utilizing the Siemens system; the silicon is reacted to provide trichlorosilane, which can be initially purified by distillation, then reacted with purified hydrogen on higher purity silicon rods at 1150 oC to yield higher purity, polycrystalline silicon with hydrochloric acid byproduct. Silicon https://glass-lined-carbon-steel37047.glifeblog.com/35394443/silicon-carbide-compound-no-further-a-mystery