Sentence Examples


  • Iridium sulphide, IrS, is obtained when the metal is ignited in sulphur vapour.
  • The disulphide, IrS2, is formed when powdered iridium is heated with sulphur and an alkaline carbonate.
  • The whole of the lead and sulphur of the sulphide was found to be present in the sulphate; in other words, the combining ratio of the lead and sulphur was not altered by the addition of the oxygen.
  • The most common of these sulphides is cobaltous sulphide, CoS, which occurs naturally as syepoorite, and can be artificially prepared by heating cobaltous oxide with sulphur, or by fusing anhydrous cobalt sulphate with barium sulphide and common salt.
  • The ammonium cobalto-cobaltisulphite is prepared by saturating an air-oxidized ammoniacal solution of cobaltous chloride with sulphur dioxide.

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