Chemistry:Berkelium(III) oxide

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Berkelium(III) oxide
Kristallstruktur Lanthanoid-C-Typ.png
Names
Other names
diberkelium trioxide, berkelium sequioxide
Identifiers
3D model (JSmol)
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

Berkelium(III) oxide is a binary inorganic compound of berkelium and oxygen with the chemical formula Bk2O3.[1]

Synthesis

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

2BkO
2
+ H
2
→ Bk
2
O
3
+ H
2
O

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) (in en). The Chemistry of the Actinide Elements: Volume 2. Springer Science & Business Media. p. 1004. ISBN 978-94-009-3155-8. https://books.google.com/books?id=ywDwCAAAQBAJ&dq=berkelium(III)+oxide+Bk2O3&pg=PA1004. Retrieved 11 April 2023. 
  2. Sabry, Fouad (15 October 2022) (in en). Americium: Future space missions can be powered for up to 400 years. One Billion Knowledgeable. https://books.google.com/books?id=Z2yVEAAAQBAJ&dq=berkelium(III)+oxide&pg=PT77. 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" (in en). Inorganic and Nuclear Chemistry Letters 3 (9): 327–336. doi:10.1016/0020-1650(67)80037-0. ISSN 0020-1650. https://www.sciencedirect.com/science/article/abs/pii/0020165067800370. Retrieved 11 April 2023. 
  4. Baybarz, R. D. (1 August 1968). "The berkelium oxide system" (in en). Journal of Inorganic and Nuclear Chemistry 30 (7): 1769–1773. doi:10.1016/0022-1902(68)80352-5. ISSN 0022-1902. https://www.sciencedirect.com/science/article/abs/pii/0022190268803525. Retrieved 11 April 2023. 
  5. Schweitzer, George K.; Pesterfield, Lester L. (14 January 2010) (in en). The Aqueous Chemistry of the Elements. Oxford University Press. ISBN 978-0-19-539335-4. https://books.google.com/books?id=-oI8DwAAQBAJ&dq=berkelium(III)+oxide+Bk2O3&pg=PA406. Retrieved 11 April 2023.