Rubidium bromide
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| General | |
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| Systematic name | Rubidium bromide |
| Other names | Rubidium(I) bromide |
| Molecular formula | RbBr |
| Molar mass | 165.372 g/mol |
| Appearance | white crystalline solid |
| CAS number | [7789-39-1] |
| Properties | |
| Density and phase | 3350 kg m-3 when solid |
| Melting point | 693°C / 966K |
| Related compounds | |
| Other anions | Rubidium fluoride Rubidium chloride Rubidium bromide Rubidium iodide Rubidium hydride Rubidium hydroxide Rubidium oxide Rubidium sulfide Rubidium selenide Rubidium telluride |
| Other cations | Lithium bromide Sodium bromide Potassium bromide Caesium bromide and all other bromides |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Rubidium bromide is the bromide of rubidium. It is an octahedral crystal.
There are several method for synthesising rubidium bromide. One involves reacting rubidium hydroxide with hydrobromic acid:
- RbOH + HBr → RbBr + H2O
Another method is to neutralise rubidium carbonate with hydrobromic acid:
- Rb2(CO3) + 2HBr → 2RbBr + H2O + CO2
The least used method due to expense of rubidium metal is to react it directly with bromide gas, as rubidium reacts violently with halogens:
- 2Rb + Br2 → 2RbBr
[edit] References
- WebElements. URL accessed March 1, 2006.
[edit] External links
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