| Names | |
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| Other names
Rubidium(I) Fluoride
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| Identifiers | |
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13446-74-7 |
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| 3D model (Jmol) | Interactive image |
| ChemSpider |
75311 |
| ECHA InfoCard | 100.033.262 |
| PubChem | 83473 |
| RTECS number | VL8740000 |
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| Properties | |
| RbF | |
| Molar mass | 104.4662 g/mol |
| Appearance | white crystalline solid |
| Density | 3.557 g/cm3 |
| Melting point | 795 °C (1,463 °F; 1,068 K) |
| Boiling point | 1,408 °C (2,566 °F; 1,681 K) |
| 130.6 g/100 mL (18 °C) | |
| −31.9·10−6 cm3/mol | |
| Hazards | |
| Main hazards | Toxic |
| Flash point | Non-flammable |
| Related compounds | |
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Other anions
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Rubidium chloride Rubidium bromide Rubidium iodide Rubidium astatide |
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Other cations
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Lithium fluoride Sodium fluoride Potassium fluoride Caesium fluoride Francium fluoride |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Rubidium fluoride (RbF) is the fluoride salt of rubidium. It is a cubic crystal with rock-salt structure.
There are several methods for synthesising rubidium fluoride. One involves reacting rubidium hydroxide with hydrofluoric acid:
Another method is to neutralize rubidium carbonate with hydrofluoric acid:
Another possible method is to react rubidium hydroxide with ammonium fluoride:
The least used method due to expense of rubidium metal is to react it directly with fluorine gas, as rubidium reacts violently with halogens: