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Yttrium-group earths, containing samarium, separation from mona-zite by magnesium nitrate, 2 56 separation by fractional crystallization of bromates, 2 56, 62 separation from cerium earths by double-sulfate method, 2 44, 46... [Pg.286]

See other pages where Yttrium-group earths, containing samarium separation from is mentioned: [Pg.55] [Pg.461]