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Barium (Ba)
Pure barium, ([Xe]6s2) (CAS 7440-39-3) is silvery-white, soft, and metallic. As a member of the alkaline earth group, it resembles calcium chemically. Naturally occurring barium is composed of seven stable isotopes and is not found in its elemental form. The metal oxides very easily and should be stored in an oxygen-free environment. Barium reacts with water and alcohol.
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Used as getter, in cathode ray tubes, thermionic emitter tubes and sodium vapor lamps This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand.