Rubidium hydroxide

Summary

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 corrosive. Rubidium hydroxide is formed when rubidium metal reacts with water.[2]

Rubidium hydroxide
Names
IUPAC name
Rubidium hydroxide (+1)
Identifiers
  • 1310-82-3 checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:32108 checkY
ChemSpider
  • 56181 checkY
ECHA InfoCard 100.013.806 Edit this at Wikidata
  • 62393
RTECS number
  • VL8750000
UNII
  • 2692362HBM checkY
  • DTXSID1061655 Edit this at Wikidata
  • InChI=1S/H2O.Rb/h1H2;/q;+1/p-1 checkY
    Key: CPRMKOQKXYSDML-UHFFFAOYSA-M checkY
  • InChI=1/H2O.Rb/h1H2;/q;+1/p-1
    Key: CPRMKOQKXYSDML-REWHXWOFAO
  • [Rb+].[OH-]
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
Occupational safety and health (OHS/OSH):
Main hazards
Corrosive
GHS labelling:
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

UsesEdit

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]

See alsoEdit

ReferencesEdit

  1. ^ "Sortierte Liste: pKb-Werte, nach Ordnungszahl sortiert. - Das Periodensystem online" (in German).
  2. ^ a b Lenk, Winfried; Prinz, Horst; Steinmetz, Anja (2010). "Rubidium and Rubidium Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a23_473.pub2.
  • "Rubidium compounds: dirubidium oxide". WebElements: the periodic table on the web. WebElements. Retrieved 16 November 2011.
  • "Rubidium hydroxide". ChemExper Chemical Directory : catalog of chemicals and suppliers. ChemExper. Retrieved 16 November 2011.