Rubidium fluoride
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| General | |
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| Systematic name | Rubidium fluoride |
| Other names | Rubidium(I) Fluoride |
| Molecular formula | RbFl |
| Molar mass | 104.466 g/mol |
| Appearance | white crystalline solid |
| CAS number | [13446-74-7] |
| Properties | |
| Density and phase | 3200 kg m-3 when solid |
| Melting point | 795°C / 1068K |
| 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 fluoride Sodium fluoride Potassium fluoride Caesium fluoride Francium fluoride and all other fluorides |
| 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 fluoride (RbF) is the fluoride of rubidium. It is an octahedral crystal.
There are several method for synthesising rubidium fluoride. One involves reacting rubidium hydroxide with hydrofluoric acid:
- RbOH + HF → RbF + H2O
Another method is to neutralise rubidium carbonate with hydrofluoric acid:
- Rb2(CO3) + 2HF → 2RbF + H2O + CO2
The least used method due to expense of rubidium metal is to react it directly with fluorine gas, as rubidium reacts violently with halogens:
- 2Rb + F2 → 2RbF
[edit] References
- WebElements. Retrieved on February 23, 2006.
[edit] External links
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