Cesium

Cesium
chemical element: Cs
( solid )
Ultra pure quantities of the element Cesium (sometimes spelled Caesium) atomic number 55. ideal for element collectors of those conducting experiments/producing alloys with pure Cesium metal. Cesium is one of the most reactive metals known to man - it will ignite upon exposure to air or water. For protection, our Cesium samples are sealed in glass ampoules under Argon gas.
As its melting temperature is only 83ºF, it will become liquid on warm days.
Pure Cesium metal has been used as a propellant in ion spacecraft engines and in vacuum tubes.
Ampoules contain 1 gram of pure Cesium metal.
Note: Ampoule style/shape/size may vary depending on current availability, but will always contain 1 gram of the element.
Caution: Use safety precautions (wear eye protection and gloves) when working with Cesium metal. Violently/explosively reacts with water and may ignite on contact with air. Causes severe burns on contact with body tissue. See MSDS link below.