Sentence Examples


  • Rose, who regarded niobium oxide as the element.
  • COLUMBIUM, or Niobium (symbol Cb or Nb, atomic weight 94), one of the metallic elements of the nitrogen group, first detected in 1801 by C. Hatchett in a specimen of columbite (niobite) from Massachusetts (Phil.
  • In 1809 he proved the elementary character of columbium (niobium) and titanium.
  • Rose detected two new elements in the columbites of the Bodenmais, which he named niobium and pelopium; dianium was discovered by W.
  • Blomstrand, and others, especially of Marignac, proved the identity of columbium, dianium and niobium, and that ilmenium was a mixture of columbium and tantalum.

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