Cesium Hydroxide (CsOH·H2O )-Powder

Characteristic




Caesium hydroxide or cesium hydroxide (CsOH) is a chemical compound consisting of caesium ions and hydroxide ions. It is a strong base (pKb=-1.76), much like the other alkali metal hydroxides such as sodium hydroxide and potassium hydroxide.Due to its high reactivity, caesium hydroxide is extremely hygroscopic. Laboratory caesium hydroxide is typically a hydrate.




Chemical formula：CsOH

Molar mass：149.912 g/mol

Appearance：Whitish-yellow deliquescent crystals

Density：3.675 g/cm3

Melting point：272 °C (522 °F; 545 K)

Solubility in water：300 g/100 mL at 30 °C

Solubility：Soluble in ethanol

Basicity (pKb)：-1.76 (CsOH(aq) = Cs+ + OH–)




Application




A strong base is used as an electrolyte for storage batteries and as a catalyst for polymerization.