WebElements Periodic Table of the Elements | Uranium

Uranium compounds: uranium triselenide

The uranium in uranium triselenide formally is in the oxidation state 6.

Uranium triselenide

Formula as often written: USe₃
Hill system formula: Se₃U₁
CAS registry number: [12138-23-7]
Formula weight: 474.909
Class: selenide

Synonyms

uranium triselenide
uranium(VI) selenide
uranium selenide

Physical properties

Colour: black
Appearance: crystalline solid
Melting point: 1160°C (decomposes)
Boiling point:
Density:

Suppliers

Coming soon...

Element analysis

Element percentages for the elements in uranium triselenide
Element	%
Se	49.88
U	50.12

Synthesis

Not available

Solid state structure

Geometry of uranium:
Prototypical structure:

Crystal structure of uranium triselenide

Isotope pattern

What follows is the calculated isotope pattern for the USe₃ unit with the most intense ion set to 100%.

Formula: U₁Se₃

mass  %
462   0.0 
463   0.0 
464   0.1 
465   0.0 
466   0.9 
467   0.3 
468   4.5 __
469   0.8 
470  15.8 ________
471   2.1 _
472  40.3 ____________________
473   3.4 __
474  76.2 ______________________________________
475   3.7 __
476 100.0 __________________________________________________
477   1.2 _
478  88.2 ____________________________________________
479   0.1 
480  34.5 _________________
481   0.0 
482   5.9 ___
483   0.0 
484   0.4

References

The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.