Uranium(III) bromide

Uranium(III) bromide is an inorganic compound with the chemical formula UBr3. It is radioactive.

Preparation
Uranium(III) bromide can be obtained by the reaction of uranium metal or uranium(III) hydride and hydrogen bromide, or it can also be prepared by the thermal decomposition of NH4UBr4·1.5CH3CN·6H2O. It is difficult to synthesize due to its rapid oxidation in both water and air.