Rubidium fluoride
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General | |
---|---|
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 |
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 the react it directly with fluorine gas, as rubidium reacts violently with halogens:
- 2Rb + F2 → 2RbF
[edit] References
- WebElements. Retrieved on 23 February 2006.