Berkelium(III) oxide

Berkelium(III) oxide is a binary inorganic compound of berkelium and oxygen with the chemical formula Bk
2O
3.[1]

Berkelium(III) oxide
Names
Other names
diberkelium trioxide, berkelium sequioxide
Identifiers
3D model (JSmol)
  • InChI=1S/2Bk.3O/q2*+3;3*-2
    Key: LIPRULCJHNQYDI-UHFFFAOYSA-N
  • [Bk+3].[Bk+3].[O-2].[O-2].[O-2]
Properties
Bk2O3
Molar mass 542 g·mol−1
Appearance yellow-green solid
Density g/cm3
Melting point 1,920 °C (3,490 °F; 2,190 K)
insoluble
Structure
cubic
Related compounds
Related compounds
 Californium(III) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Synthesis

Berkelium(III) oxide can be prepared from berkelium(IV) oxide by reduction with hydrogen:[2]

2BkO2 + H2 → Bk2O3 + H2O

Physical properties

The compound forms a yellow-green solid with a melting point of 1920 °C. It forms a body-centered cubic crystal lattice with a = 1088.0 ± 0.5 pm.[3][4]

Insoluble in water.[5]

References
  1. Seaborg, G. T.; Katz, Joseph J.; Morss, L. R. (6 December 2012). The Chemistry of the Actinide Elements: Volume 2. Springer Science & Business Media. p. 1004. ISBN 978-94-009-3155-8. Retrieved 11 April 2023.
  2. Sabry, Fouad (15 October 2022). Americium: Future space missions can be powered for up to 400 years. One Billion Knowledgeable. Retrieved 11 April 2023.
  3. Peterson, J. R.; Cunningham, B. B. (1 September 1967). "Crystal structures and lattice parameters of the compounds of berkelium I. Berkelium dioxide and cubic berkelium sesquioxide". Inorganic and Nuclear Chemistry Letters. 3 (9): 327–336. doi:10.1016/0020-1650(67)80037-0. ISSN 0020-1650. Retrieved 11 April 2023.
  4. Baybarz, R. D. (1 August 1968). "The berkelium oxide system". Journal of Inorganic and Nuclear Chemistry. 30 (7): 1769–1773. doi:10.1016/0022-1902(68)80352-5. ISSN 0022-1902. Retrieved 11 April 2023.
  5. Schweitzer, George K.; Pesterfield, Lester L. (14 January 2010). The Aqueous Chemistry of the Elements. Oxford University Press. ISBN 978-0-19-539335-4. Retrieved 11 April 2023.


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