Cesium, element symbol Cs, atomic number 55, located in the sixth period, IA group, its simple substance is a light golden yellow active metal, with a low melting point, it is easily oxidized in the air, and can react violently with water to generate hydrogen. Explosion[1]. Cesium has no elemental form in nature, and is only rarely distributed in the land and ocean in the form of salt. Cesium is an important material for manufacturing vacuum parts, photoelectric tubes, etc.


Preparation methodedit
Cesium can be prepared by electrolysis and thermal reduction. However, due to its strong corrosiveness to the electrode, electrolysis is generally not used in the industry. Therefore, in the industry, cesium metal is produced by reducing cesium chloride with metal calcium at high temperature.

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