![]() ![]() ![]() It ignites spontaneously in moist air, may explode in contact with sulfur or phosphorus, and reacts violently with oxidizing materials. Radioactive Cesium-137 has prospective applications in the sterilization of wheat, flour and potatoes.Ĭesium presents a dangerous fire and explosion risk. Combustion with oxygen (or air) first forms the oxide Cs 2O, which converts to the peroxide Cs 2O 2, and then the superoxide CsO 2.Īpplications of cesium include the following: usefulness as a "getter" in electron tubes, in photoelectric cells, in ion propulsion systems, as heat transfer fluid in power generators, and in atomic clocks. For all process control and instrumentation sources the Caesium is incorporated into a non-leachable dispersion resistant ceramic. It combines with most nonmetals, forming one or more binary compounds. It is soluble in acids and alcohol, reacts explosively with water, and dissolves in liquid ammonia, forming a blue solution. Cesium has the highest position in the electromotive series, the lowest melting point of any alkali metal, and the lowest ionization potential of any element. It also reacts violently with oxygen, the halogens, sulfur and phosphorus, with spontaneous ignition and/or explosion. A shorter version, the ToxFAQs, is also available. Further data for radioisotopes (radioactive isotopes) of caesium are listed (including any which occur naturally) below. It is one in a series of Public Health Statements about hazardous substances and their health effects. It is highly reactive and decomposes in water, evolving hydrogen, which ignites instantly. CAS: PDF Version 175 KB This Public Health Statement is the summary chapter from the Toxicological Profile for cesium. It is liquid at slightly above room temperature and a soft solid below its melting point. Its name derives from the Latin word caesius, meaning "sky blue" or "heavenly blue."Ĭesium is a golden yellow, soft, ductile metal with a body-centered cubic structure. Print PDF Stable Isotopes of Cesium IsotopeĬesium, also spelled caesium, was discovered in 1860 by Robert Bunsen and Gustav Kirchhoff. ![]()
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