Actinium oxyfluoride

Actinium oxyfluoride is an inorganic compound, with the chemical formula AcOF. It is radioactive. It crystallises in a calcium fluoride structure.[3] It can be obtained by reacting actinium fluoride with ammonia and water:[4]

AcF3 + 2 NH3 + H2O → AcOF + 2 NH4F[lower-greek 1]
Actinium oxyfluoride
Identifiers
3D model (JSmol)
  • InChI=1S/Ac.FH.O/h;1H;/q+3;;-2/p-1
    Key: LHOIFNAUSIZYHZ-UHFFFAOYSA-M
  • [Ac+3].[F-].[O-2]
Properties
AcOF
Molar mass 262.03
Appearance solid
Density 8.280 g·cm−1[1]
Structure[2]
cubic
a = 0.5931 nm
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

The reaction proceeds completely at 1200 °C, and unreacted AcF3 will remain at lower temperatures.[5]

Notes

  1. Ammonium fluoride decomposes into NH3 and HF at high temperature and recombines at low temperature

References

  1. Yaws, C. (2015). The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals: Physical Properties for More Than 54,000 Organic and Inorganic Chemical Compounds, Coverage for C1 to C100 Organics and Ac to Zr Inorganics. Elsevier Science. p. 685. ISBN 978-0-12-801146-1. Archived from the original on 2022-02-02. Retrieved 2022-02-01.
  2. Perry, D.L. (2016). Handbook of Inorganic Compounds. CRC Press. p. 527. ISBN 978-1-4398-1462-8. Archived from the original on 2022-02-02. Retrieved 2022-02-01.
  3. 无机化学丛书 第十卷 锕系 锕系后元素. 科学出版社. pp 92-93. 5. 卤氧化物
  4. Sherman Fried, French Hagemann, W. H. Zachariasen (Feb 1950). "The Preparation and Identification of Some Pure Actinium Compounds 1". Journal of the American Chemical Society. 72 (2): 771–775. doi:10.1021/ja01158a034. ISSN 0002-7863. Archived from the original on 2022-01-23. Retrieved 2022-02-01.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  5. W. H. Zachariasen (1951-05-01). "Crystal chemical studies of the 5 f -series of elements. XIV. Oxyfluorides, X OF". Acta Crystallographica. 4 (3): 231–236. doi:10.1107/S0365110X51000787. ISSN 0365-110X. Archived from the original on 2022-06-18. Retrieved 2022-02-01.
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