Sentence Examples


  • 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.
  • 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.
  • It was also decided to immerse one sample directly into the ammonium oxalate solution for five hours.
  • Important: Rhubarb leaves contains oxalate, which have been reported to cause poisoning when large quantities of raw or cooked leaves are ingested.
  • Increased urinary oxalate increases the risk of stone formation.

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