Uranium*.

Autor: Grenthe, Ingmar, Drożdżyński, Janusz, Fujino, Takeo, Buck, Edgar C., Albrecht-Schmitt, Thomas E., Wolf, Stephen F.
Zdroj: Chemistry of the Actinide & Transactinide Elements (9789400702103); 2011, p253-698, 446p
Abstrakt: Uranium compounds have been used as colorants since Roman times (Caley, 1948). Uranium was discovered as a chemical element in a pitchblende specimen by Martin Heinrich Klaproth, who published the results of his work in 1789. Pitchblende is an impure uranium oxide, consisting partly of the most reduced oxide uraninite (UO2) and partly of U3O8. Earlier mineralogists had considered this mineral to be a complex oxide of iron and tungsten or of iron and zinc, but Klaproth showed by dissolving it partially in strong acid that the solutions yielded precipitates that were different from those of known elements. Therefore he concluded that it contained a new element (Mellor, 1932); he named it after the planet Uranus, which had been discovered in 1781 by William Herschel, who named it after the ancient Greek deity of the Heavens. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index