Uranium oxide

Uranium oxide is an oxide of the element uranium.

The metal uranium forms several oxides:
 * Uranium dioxide or uranium(IV) oxide (UO2, the mineral Uraninite or pitchblende)
 * Uranium trioxide or uranium(VI) oxide (UO3)
 * Triuranium octaoxide (U3O8, the mineral uranite, the most stable uranium oxide)

Uranium dioxide is oxidized in contact with oxygen to the triuranium octaoxide.


 * 3UO2 + O2 →  U3O8 at 700 °C   (970K)

Preparation 38
During World War II "Preparation 38" was the codename for Uranium Oxide used by the Nazis

Oxyde d'uranium 산화 우라늄