Rubidium hydroxide
| Names | |
|---|---|
| IUPAC name Rubidium hydroxide | |
| Identifiers | |
| 3D model (JSmol) | |
| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.013.806 | 
| PubChem CID | |
| RTECS number | 
 | 
| UNII | |
| CompTox Dashboard (EPA) | |
| 
 | |
| 
 | |
| Properties | |
| RbOH | |
| Molar mass | 102.475 g·mol−1 | 
| Appearance | white solid, hygroscopic | 
| Density | 3.1 g/mL at 25 °C | 
| Melting point | 382 °C (720 °F; 655 K) dec | 
| Boiling point | 1,390 °C (2,530 °F; 1,660 K) | 
| 173 g/100 mL (30 °C) | |
| Solubility | soluble in ethanol | 
| Acidity (pKa) | 15.4 | 
| Thermochemistry | |
| Std enthalpy of formation (ΔfH⦵298) | −413.8 kJ/mol | 
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
| Main hazards | Corrosive | 
| GHS labelling: | |
| NFPA 704 (fire diamond) | |
| Flash point | Non-flammable | 
| Related compounds | |
| Other cations | Lithium hydroxide Sodium hydroxide Potassium hydroxide Cesium hydroxide | 
| Related compounds | Rubidium oxide (+1) | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Rubidium hydroxide is the inorganic compound with the formula RbOH. It consists of rubidium cations and an equal number of hydroxide anions. It is a colorless solid that is commercially available as aqueous solutions from a few suppliers. Like other strong bases, rubidium hydroxide is highly caustic. Rubidium hydroxide is formed when rubidium metal reacts with water.