Rubidium hydroxide
Pharmaceutical Materials 2025-03-02
CAS Number: 1310-82-3
Molecular Formula: RbOH
Molecular Weight: 102.48 g/mol
Appearance: White crystalline solid
Usage: Widely used as an analytical reagent and as an electrolyte in low-temperature batteries.
| Attribute | Description |
|---|---|
| Chemical Name | Rubidium hydroxide |
| Formula | RbOH |
| CAS Number | 1310-82-3 |
| Molecular Weight | 102.475 g/mol |
| Appearance | White crystalline powder |
| Density | 3.203 g/cm³ |
| Melting Point | 300-302°C |
| Solubility | Highly soluble in water and ethanol |
| pH | Strongly alkaline |
| Chemical Properties | Forms several hydrates, such as RbOH·1/2H₂O, RbOH·H₂O, RbOH·2H₂O, and RbOH·4H₂O; highly reactive with acids; thermally stable and melts at relatively low temperatures without decomposition |
| Preparation Methods | By reacting rubidium sulfate with barium hydroxide, followed by evaporation, concentration, and crystallization; or by electrolysis of rubidium chloride |
| Applications | Used as an electrolyte in low-temperature batteries, as a catalyst, and for the preparation of other rubidium compounds |
| Hazards | Corrosive; can cause severe skin and eye burns; may be harmful if inhaled or ingested; reacts violently with acids |
| Safety Precautions | Wear appropriate protective clothing, gloves, and eye protection; avoid contact with skin, eyes, and clothing; keep away from acids and flammable materials; store in a cool, dry place |
| Disposal | Dispose of according to local regulations for hazardous waste; avoid release to the environment |
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