Quite superior purity silicon for semiconductors is obtained using the Siemens approach; the silicon is reacted to produce trichlorosilane, which can be initially purified by distillation, then reacted with purified hydrogen on superior purity silicon rods at 1150 oC to yield higher purity, polycrystalline silicon with hydrochloric acid byproduct. Its https://keegannnlki.evawiki.com/9748966/a_review_of_density_of_tic