Sentence Examples


  • They are precipitated from their alkaline solutions as cobalt sulphide by sulphuretted hydrogen, but this precipitation is prevented by the presence of citric and tartaric acids; similarly the presence of ammonium salts hinders their precipitation by caustic alkalis.
  • He recommended that yeast should be purified by cultivating it in a solution of sugar containing tartaric acid, or, in wort containing a small quantity of phenol.
  • Berzelius by the dry distillation of tartaric or racemic acids (Pogg.
  • It is usually made by distilling tartaric acid with potassium bisulphate at about zoo-250° C., the crude product being afterwards fractionated.
  • This base is resolved into its active components by d-tartaric acid, l-nicotine-d-tartrate crystallizing out first.

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