Uranium Tribromide

Uranium Tribromide

Uranium Tribromide



Formula as commonly written: UBr3uranium (III) bromide

  • Hill system formula: Br3U1
  • CAS registry number: [13470-19-4]
  • Formula weight: 477.741
  • Class: bromide


  • uranium (III) bromide
  • uranium bromide
  • uranium tribromide

Physical properties

  • Colour: red
  • Appearance: crystalline solid
  • Melting point: 727°C
  • Boiling point: 1537°C
  • Density:


Coming soon…

Element analysis and oxidation numbers

For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.

Element % Formal oxidation state Formal electronic configuration
Br 50.18 -1 [Ar].3d10.4s2.4p6
U 49.82 3 [Rn].5f3


Not available

Solid state structure

  • Geometry of uranium: 9 coordinate: tricapped trigonal prismatic
  • Prototypical structure:

Isotope pattern

What follows is the calculated isotope pattern for the UBr3 unit with the most intense ion set to 100%.

Formula: U1Br3

mass  %471   0.0 472   0.2 473   0.0 474   0.7 475  34.3 476   0.7 477 100.0 478   0.2 479  97.3 480   0.0 481  31.5



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