Everything about Caesium Hydroxide totally explained
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Caesium hydroxide (CsOH) is a
chemical compound consisting of an atom of
caesium and a
hydroxide group (also known as
hydroxyl). It is a powerful
base, much like other
alkali metal hydroxides such as
sodium hydroxide and
potassium hydroxide. Caesium hydroxide can corrode glass.
Due to its high reactivity, caesium hydroxide is extremely
hygroscopic. Laboratory caesium hydoxide is typically a
hydrate.
It is an anisotropic etchant of
silicon, exposing
octahedral planes. This technique can create pyramids and regularly-shaped etch pits for uses such as
MEMS. It is known to have a higher selectivity to etch highly p-doped silicon than the more commonly used
potassium hydroxide.
However, this compound isn't usually used in experiments as the extraction of caesium is very expensive and the fact that it behaves very much like
rubidium hydroxide and
potassium hydroxide but reacts chemically stronger than they do.
Caesium hydroxide can be obtained by the following chemical reaction:
» 2 Cs + 2 H
2O → 2 CsOH + H
2
The above reaction occurs explosively. Caesium metal will react with ice above -116 °C.
Further Information
Get more info on 'Caesium Hydroxide'.
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