Sentence Examples

  • By heating a mixture of cobalt oxalate and sal-ammoniac in air, it is obtained in the form of minute hard octahedra, which are not magnetic, and are only soluble in concentrated sulphuric acid.
  • This solution, on standing, deposits octahedra of the composition CoC1 2.6NH 3.
  • Many of them contain large octahedra of magnetite.
  • It crystallizes in octahedra isomorphous with stannic oxide.
  • Potash alum, K 2 SO 4 �Al 2 (SO 4)a�24H 2 O, crystallizes in regular octahedra and is very soluble in water.