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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