Uranium--Chemical structures, Histroy & Sources

Uranium Chemical structures

Atomic Number :92
Atomic Symbol :U

Atomic Weight :238.029
Oxidation State :6, 5, 4

Atomic Radius :138.5 pm

Melting Point :1135°C

Boiling Point :4131°C

Electron Configuration :[Rn]7s25f36d1


A brief history of Uranium

The Planet Uranus, is the yellow-colored glass, containing more than 1% uranium oxide and dating back to 79 A.D., has been found near Naples, Italy. It is named as Uranus, after the Greek Ouranos, the son and husband of Gaia. Klaproth recognized an indefinite element in pitchblende and attempted to detach the metal in 1789. Actually the metal was the first one to be isolated in 1841 by Peligot, who reduced the anhydrous chloride with potassium.

Uranium Sources

The United States Department of Energy buys uranium in the form of acceptable U3O8 concentrates. This inducement program has greatly increased the known uranium reserves.

Uranium can be made ready by reducing uranium halides with alkali or alkaline earth metals or by reducing uranium oxides by calcium, aluminum, or carbon at high temperatures. The metal can also be created by electrolysis of KUF5 or UF4, dissolved in a molten mixture of CaCl2 and NaCl. High-purity uranium can be made ready by the thermal decomposition of uranium halides on a hot filament.

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