Actinium(III) bromide

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Actinium(III) bromide[1]
Names
Other names
Actinium tribromide
Identifiers
3D model (
JSmol
)
  • InChI=1S/Ac.3BrH/h;3*1H/p-3
    Key: KATYVAFQSWUUQL-UHFFFAOYSA-K
  • [Br-].[Br-].[Br-].[Ac]
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
 Actinium(III) chloride
Other cations
 Lanthanum(III) bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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]

Reactions

When treated with a mixture of gaseous ammonia and water vapor at 500°C, it turns into actinium oxybromide.[3]

References

  1. ^ a b "Actinium tribromide". WebElements. Retrieved 15 April 2021.
  2. doi:10.1107/S0365110X48000703
    .
  3. ISBN 9780598942548
    .


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