Sentence Examples


  • Towards the middle of the 18th century two new elements were isolated: cobalt by G.
  • Small amounts of nickel and cobalt are often present.
  • Cobalt is deposited by a method analogous to that used for its sistermetal nickel.
  • Nickel and cobalt are also strongly magnetic, and in 1903 the interesting discovery was made by F.
  • Metallic cobalt may be obtained by reduction of the oxide or chloride in a current of hydrogen at a red heat, or by heating the oxalate, under a layer of powdered glass.