Equally Gregor And Klaproth labored with titanium compounds. The initial significant isolation of just about pure titanium was accomplished in 1875 by Kirillov in Russia. Isolation on the pure metal wasn't demonstrated until 1910 when Matthew Hunter and his associates reacted titanium tetrachloride with sodium in the heated steel bomb. https://tysonfgfdb.wikiannouncing.com/6619190/not_known_facts_about_mn2o3_compound_name