Decipium

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Decipium was the proposed name for a new chemical element isolated by Marc Delafontaine from the mineral samarskite. He published his discovery in 1878 and a follow-up paper in 1881.[1][2][3] Later it was shown that decipium was a mixture of samarium and other rare earth elements.

References[edit]

  1. ^ Delafontaine, Marc (1878). "Sur le décepium, métal nouveau de la samarskite". Journal de pharmacie et de chimie 28: 540. 
  2. ^ Delafontaine, Marc (1881). "Sur le décipium et le samarium". Comptes rendus hebdomadaires des séances de l'Académie des sciences 93: 63. 
  3. ^ Delafontaine, Marc (1878). "Sur le décepium, métal nouveau de la samarskite". Comptes rendus hebdomadaires des séances de l'Académie des sciences 87: 632.