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Showing posts with the label Optoelectronic devices

Not Euro, This is Europium

Photo retrieved fromhttp://sod-a.rsc-cdn.org/www.rsc.org/periodic-table/content/Images/Elements/Europium-L.jpg?6.0.3.0 - Europium, a member of the lanthanides group of elements - Europium can be easily molded or shaped and is about as hard as lead. - Europium is the most reactive of the rare earth metals, quickly oxidizing in air and, like calcium, it reacts quickly and vigorously with water. - Europium can be found in the ores bastnasite and monazite. The element has also been identified in the sun and some stars. - Europium is considered to be mildly toxic. The metal dust is considered to be a fire and explosion hazard. - Europium is the most reactive of the rare earth metals and ignites in air at temperatures in excess of 150° C to 180° C. - Unlike most other rare earth metals, europium can form stable compounds in the divalent state, Eu2+ (europous) as well as the usual trivalent state, Eu3+ (europic). - Europium is also used in phosphors in anti-forgery marks on E...