How Do You Purify the Most Reactive Metal on Earth?

In today’s video, I take you through the frustrating journey of trying to make a perfectly pure ampoule of the most reactive metal on Earth: cesium. There is no other video that shows the distillation of this alkali metal in such detail.

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A huge thank you to the HWI Group for their generous donation! You can find their website here: https://hwi-group.de

And thanks to Sascha for lending me his mushroom ash to record a Cs-137 spectrum!

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How (NOT) to make 1.5 kg of Cesium
https://youtu.be/98qiQJ8maCU

3D model of the Snaplock box: https://makerworld.com/de/models/2168356-snaplock-v3