How is CsOH (cesium hydroxide) reduced to Cs, its elemental form?Cs is the most electropositive/reactive metal on the Periodic Table. And Fr (the element below it) obviously may not be able...

How is CsOH (cesium hydroxide) reduced to Cs, its elemental form?

Cs is the most electropositive/reactive metal on the Periodic Table. And Fr (the element below it) obviously may not be able to reduce it as it's radioactive (I don't know if it's possible). Is there any other method to reduce this most stable cation Cs+ to its element Cs? Please help me as I need this info for my project. Thanks a lot!!

Asked on by wq17

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bandmanjoe | Middle School Teacher | (Level 2) Senior Educator

Posted on

I did not find anything to suggest cesium hydroxide will reduce to elemental cesium.  Cesium is in group one, the same as sodium, potassium.  As such, cesium metal is violently reactive with water.  The reaction is so violent, it will shatter a pyrex beaker!  Cesium will react with water as cold as -116 degrees Celsius.  Cesium is usually found in compounds as cesium nitride.  It is very unstable as an element, and must be stored in an inert element, such as argon gas.  Due to the fact cesium is so hygroscopic, it is extremely doubtful one could produce elemental cesium by separating it from the hydroxyl ion in cesium hydroxide.  It's instability in water would virtually guarantee the recombinance of the cesium ion with the hydroxyl ion to reform cesium hydroxide.  Elemental cesium is available from other sources, however.  There are ores in the Earth that can be mined that contain both cesium and rubidium.  Upon careful application of heat, these two may be separated from the ore into their respective elemental collections.

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