| Identifiers | |
|---|---|
| Properties | |
| Chemical formula | Br6H8N2Se |
| Molar mass | 594.473 g·mol |
| Appearance | red crystals |
| Density | 3.326 g/cm |
| Solubility in water | reacts with water |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Ammonium hexabromoselenate(IV) is an inorganic chemical compound with the chemical formula (NH4)2[SeBr6].
Synthesis
Ammonium bromide is added to aqueous solutions of selenium tetrabromide acidified with hydrogen bromide:
- SeBr4 + 2NH4Br → (NH4)2[SeBr6]
Also, selenium dioxide dissolved in hydrobromic acid and treated with ammonium chloride produces the compound.
Physical properties
The compound forms red crystals of the cubic system, space group Fm3m.
The compound decomposes in water.
References
- Satya, Prakash (2013). Advanced Chemistry of Rare Elements. S. Chand Publishing. p. 303. ISBN 978-81-219-4254-6. Retrieved 22 November 2024.
- 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.
- Donnay, Joseph Désiré Hubert (1963). Crystal Data; Determinative Tables. American Crystallographic Association. p. 976. Retrieved 5 November 2024.