Sentence Examples


  • The alkaloid is obtained from an aqueous extract of tobacco by distillation with slaked lime, the distillate being acidified with oxalic acid, concentrated to a syrup and decomposed by potash.
  • Cadmium salts can be recognized by the brown incrustation which is formed when they are heated on charcoal in the oxidizing flame of the blowpipe; and also by the yellow precipitate formed when sulphuretted hydrogen is passed though their acidified solutions.
  • The solution is then acidified, and the phenols are'liberated and form an oily layer on the surface of the acid.
  • The mixture is then cooled, acidified by means of sulphuric acid, and titrated with decinormal sodium thiosulphate solution.
  • The solution obtained is neutralized, concentrated on the water-bath, acidified by sulphuric acid and extracted with ether.
 

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