Rubidium hydroxide
| Rubidium hydroxide | |
|---|---|
| Rubidium hydroxide | |
| General | |
| Molecular formula | RbOH |
| Molar mass | 102.48 g/mol |
| Appearance | white solid, hygroscopic |
| CAS number | [1310-82-3] |
| Properties | |
| Density and phase | 3.203 g/cm3, solid |
| Solubility in water | 180 g/100 ml (15 °C) |
| Melting point | 301 °C |
| Boiling point | ? °C (? K) |
| Thermodynamic data | |
| Standard enthalpy of formation ΔfH°solid |
−413.8 kJ/mol |
| Standard molar entropy S°solid |
? J.K−1.mol−1 |
| Hazards | |
| EU classification | not listed |
| NFPA 704 | |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Regulatory data | Flash point, RTECS number, etc. |
| Related compounds | |
| Other anions | ? |
| Other cations | Lithium hydroxide Sodium hydroxide Potassium hydroxide Caesium hydroxide |
| Related compounds | ? |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |
Rubidium Hydroxide (RbOH) is a strong basic chemical and alkali that is formed by one rubidium ion and one hydroxyl ion.
Rubidium hydroxide doesn't appear in nature. However it can be obtained by synthesis from rubidium oxide. In addition, rubidium hydroxide is commercially available in form of a 99.9% aqueous solution from a few suppliers.
Rubidium is highly corrosive, therefore suitable protective clothing, gloves and eye-face protection are required when handling this material.
Synthesis
Rubidium hydroxide is not naturally existent. It can be synthesized from another rubidium compound, rubidium oxide by dissolving the oxide into water:
- Rb2O (s) + H2O (l) → 2RbOH (aq)