Uranium(III) bromide
Identifiers
Properties
UBr3
Molar mass
477.741
Appearance
brown solid
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
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 ,[ 1] or it can also be prepared by the thermal decomposition of NH4 UBr4 ·1.5CH3 CN·6H2 O. [ 2] It is difficult to synthesize due to its rapid oxidation in both water and air.[ 3]
References
^ Barnard, Robert; Bullock, Joseph I.; Gellatly, Barry J.; Larkworthy, Leslie F. (1973). "Chemistry of the trivalent actinides. Part III. Some chemical and physical properties of hydrated uranium(III) fluoride and the anhydrous chloride, bromide, and iodide. The stability of uranium(III) in aqueous solution and in organic solvents" . Journal of the Chemical Society, Dalton Transactions (6): 604–607. doi :10.1039/dt9730000604 . ISSN 0300-9246 .
^ Lichtscheidl, Alejandro; Pagano, Justin; Scott, Brian; Nelson, Andrew; Kiplinger, Jaqueline (2016-01-06). "Expanding the Chemistry of Actinide Metallocene Bromides. Synthesis, Properties and Molecular Structures of the Tetravalent and Trivalent Uranium Bromide Complexes: (C5 Me4 R)2 UBr2 , (C5 Me4 R)2 U(O-2,6-i Pr2 C6 H3 )(Br), and [K(THF)][(C5 Me4 R)2 UBr2 ] (R = Me, Et)" . Inorganics . 4 (1): 1. doi :10.3390/inorganics4010001 . ISSN 2304-6740 .
^ Barnard, Robert (1969). The chemistry of tervalent uranium (PhD thesis). University of Surrey. Retrieved 2023-12-21 .
U(II) U(III)
U(IV) Organouranium(IV) compounds
U(IV,V) U(IV,VI) U(V) U(VI) U(XII)
Salts and covalent derivatives of the
bromide ion