cesium hydroxide

chemical compound

Chemical data

Formula: CsHO
Molecular weight: 149.913 g/mol
IUPAC name: cesium hydroxide
SMILES: [OH-].[Cs+]
InChIKey: HUCVOHYBFXVBRW-UHFFFAOYSA-M
Polar surface area: 1 Å²
H-bond donors: 1
H-bond acceptors: 1
Formal charge: 0

via PubChem

Wikidata facts

Mass: 149.908
Image: Caesium hydroxide.jpg

Show 11 more facts

canonical SMILES: [OH-].[Cs+]
melting point: 315
vapor pressure: 0
NIOSH Pocket Guide ID: 0111
density: 3.674
solubility: 395
time-weighted average exposure limit: 2
chemical formula: CsOH
standard enthalpy of formation: -417
UN class: 8
Commons category: Caesium hydroxide

Sources (3)

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Article

Caesium hydroxide is a strong base (pKa= 15.76) containing the highly reactive alkali metal caesium, much like the other alkali metal hydroxides such as sodium hydroxide and potassium hydroxide. It is the strongest of the five alkali metal hydroxides. Fused caesium hydroxide has applications in bringing glass samples into a solution for analytical purposes in the commercial glass industry and a defense waste processing facility as it is able to dissolve glass by attacking its silica framework. The melting process is carried out in a nickel or zirconium crucible. Caesium hydroxide fusion at 750°C produces complete dissolution of glass pellets.

Due to its high reactivity, caesium hydroxide is extremely hygroscopic and deliquescent. Laboratory caesium hydroxide is typically a hydrate.