Very Large purity silicon for semiconductors is acquired using the Siemens approach; the silicon is reacted to make trichlorosilane, which is initial purified by distillation, then reacted with purified hydrogen on higher purity silicon rods at 1150 oC to yield large purity, polycrystalline silicon with hydrochloric acid byproduct. After they https://cncbusbarmachine47147.is-blog.com/43222257/about-boron-carbide