Actinium(III) bromide is a radioactive white crystalline solid that is a salt of actinium. It is prepared by reacting actinium(III) oxide with aluminium bromide at 750 °C.[1]
| Names | |
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| Other names
Actinium tribromide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| AcBr3 | |
| Molar mass | 466.74 g/mol |
| Appearance | White crystalline solid |
| Density | 5.85 g/cm3 |
| Melting point | 827 °C (1,521 °F; 1,100 K) |
| Boiling point | 1,597 °C (2,907 °F; 1,870 K) |
| soluble | |
| Structure | |
| hexagonal, hP8[2] | |
| Related compounds | |
Other anions
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Actinium(III) chloride |
Other cations
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Lanthanum(III) bromide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Reactions
editWhen treated with a mixture of gaseous ammonia and water vapor at 500°C, it turns into actinium oxybromide.[3]
References
edit- ^ a b "Actinium tribromide". WebElements. Retrieved 15 April 2021.
- ^ Zachariasen, W. H. (1948). "Crystal chemical studies of the 5f-series of elements. I. New structure types". Acta Crystallographica. 1 (5): 265–268. Bibcode:1948AcCry...1..265Z. doi:10.1107/S0365110X48000703.
- ^ the University of Michigan (1954). Seaborg, Glenn (ed.). The Actinide Elements. McGraw-Hill. p. 870. ISBN 9780598942548.
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