Cerium metal powder history

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 Cerium metal powder was discovered in Bastnäs in Sweden by Jöns Jakob Berzelius and Wilhelm Hisinger and independently in Germany by Martin Heinrich Klaproth, both in 1803 Cerium Berzelius was named after the dwarf planet in the year, Ceres, discovered two years earlier. as originally isolated cerium in the form of its oxide, and cerium oxide was called, a term which is still used. The metal itself will be isolated by the electro-fusion technology and direct current characteristic of the rare earth metals in general. After the development of electrochemistry by Humphry Davy, soon the country where five years later their metal content. Ceria, as isolated in 1803, contained all of the lanthanides in the ore Cerit Bastnäs, Sweden, and thus contained about 45% of what is known to be now pure ceria. Only Carl Gustaf Mosander succeeded in removing lanthana and receive "didymia" in the late 1830s, which was purely ceria. Wilhelm Hisinger was a wealthy mine owner and amateur scientist and sponsor of Berzelius. He owned or controlled mine Bastnäs and had tried for years, the composition of the abundant heavy gangue rock (the "Tungsten Bastnäs") know, now known as Cerit name, he had in his mine. Mosander and his family lived for many years in the same house as Berzelius and Mosander undoubtedly convinced of Berzelius discovered ceria further.When rare earths were to investigate, because they were as strong bases, oxides of calcium or magnesium, they were considered bivalent. So "Ceric" cerium and trivalent was the report of the oxidation state, therefore, considered has been viewed 1.5. Berzelius was upset to get to continue the proper ratio of 1.33.

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