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NEODYMIUM
Natural Abundance, Stable Isobars Ndl42, 27.09%, Cel42 Nd143, 12.14%, Sm144 aNd144, 23.83%, Sm148 Nd145, 8.29%, Sm150 Nd146, 17.26% Nd148, 5.74% bNd150, 5.63% The only compound which has been used for the separation of neodymium isotopes is anhydrous neodymium trichloride. The average charge consists of 150 g NdCl3 in a style C-16 graphite charge bottle. The method of charge preparation and the recycle and recovery procedures developed for samarium are used for all rare earth elements with the exception of cerium. The rare earth techniques are described in detail only for samarium and cerium. aNd144 is radioactive with a half-life of 2 x 1015 years. bNd150 is radioactive with a half-life of > 1016 years. |
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