Ammonium hexabromoselenate(IV)

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Ammonium hexabromoselenate(IV) is an inorganic chemical compound with the chemical formula (NH4)2[SeBr6].[1]

Ammonium hexabromoselenate(IV)
Identifiers
Properties
Br6H8N2Se
Molar mass 594.473 g·mol−1
Appearance red crystals
Density 3.326 g/cm3
reacts with water
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Synthesis

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Ammonium bromide is added to aqueous solutions of selenium tetrabromide acidified with hydrogen bromide:

SeBr4 + 2NH4Br → (NH4)2[SeBr6]

Physical properties

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The compound forms red crystals of the cubic system, space group Fm3m.[2][3]

The compound decomposes in water.

References

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  1. ^ Satya, Prakash (2013). Advanced Chemistry of Rare Elements. S. Chand Publishing. p. 303. ISBN 978-81-219-4254-6. Retrieved 5 November 2024.
  2. ^ Sieg, Lothar (22 July 1932). "Die Kristallstruktur des Ammoniumhexabromoselenats". Zeitschrift für anorganische und allgemeine Chemie. 207 (1): 93–96. doi:10.1002/zaac.19322070109. ISSN 0863-1786. Retrieved 5 November 2024.
  3. ^ Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 976. Retrieved 5 November 2024.