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

AcF₃ + 2 NH₃ + H₂O → AcOF + 2 NH₄F

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

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. Bibcode:1951AcCry...4..231Z. doi:10.1107/S0365110X51000787. ISSN 0365-110X. Archived from the original on 2022-06-18. Retrieved 2022-02-01.

• Actinium compounds
• Oxyfluorides