Chemical Properties
Caesium chloride completely dissociates upon dissolution in water, and the Cs+ cations are solvated in dilute solutions:
In aqueous solutions it enters common substitution reactions, for example:
CsCl converts to caesium sulfate when boiled in concentrated sulfuric acid or heated with caesium hydrogen sulfate at 550–700 °С:
- 2 CsCl + H2SO4 → Cs2SO4 + 2 HCl
- CsCl + CsHSO4 → Cs2SO4 + HCl
Caesium chloride forms a variety of double salts with other chlorides. Examples include 2CsCl·BaCl2, 2CsCl·CuCl2, CsCl·2CuCl and CsCl·LiCl, and with interhalogen compounds:
- CsCl + ICl3 → Cs
In laboratory, CsCl can be obtained by treating caesium hydroxide, carbonate, caesium bicarbonate, or caesium sulfide with hydrochloric acid:
- CsOH + HCl → CsCl + H2O
- Cs2CO3 + 2 HCl → 2 CsCl + 2 H2O + CO2
Read more about this topic: Caesium Chloride
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