| Summary: | Certain of these isotopes appear suitable for activation analysis by neutron or other type of bombardment, which, in the
future, could provide a much more sensitive technique for determination of trace quantities of the element than the spectrographic or oolorimetrio methods currently employed. The metal tarnishes in air and burns when heated forming the oxide. It occurs naturally in small quantities associated with sine, and was discovered by Strongmeyer in 1817 as an impurity in zinc carbonate. Cadmium volatilizes before zinc during the course of preparation of the metal, and condenses as a brown oxide, which is then reduced with carbon. It forms a number of salts, the chloride and sulfate being readily available in high degree of purity.
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