Chemistry:Rubidium hydroxide

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Rubidium hydroxide
Names
IUPAC name
Rubidium hydroxide
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
RTECS number
  • VL8750000
UNII
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[1]
Thermochemistry
−413.8 kJ/mol
Hazards
Main hazards Corrosive
GHS pictograms GHS05: Corrosive
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).
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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.[2]

Uses

Rubidium hydroxide is rarely used in industrial processes because potassium hydroxide and sodium hydroxide can perform nearly all the same functions of rubidium hydroxide. Metal oxide catalysts are sometimes modified with rubidium hydroxide.[2]

References