Sentence Examples


  • On boiling their solution in caustic alkalis, ammonia is liberated.
  • Uracil and its homologues may be obtained in many cases from the hydrouracils by the action of bromine, and subsequent elimination of the elements of hydrobromic acid; or by the condensation of aceto-acetic ester and related substances with urea, thiourea, guanidine, &c. Uracil, C4H402N2, crystallizes in colourless needles, is soluble in hot water and melts with decomposition at 335° C. Hydrouracil, C4H602N2, is obtained by the action of bromine and caustic alkalis on succinamide (H.
  • The powder is soluble in alcohol and strong solutions of alkalis, such as ammonia.
  • Alkalis decompose it into picro-podophyllic acid and picro-podophyllin, minute traces of both of which occur in a free state in the rhizome.
  • It is a liquid which boils at 93° C. and with caustic alkalis polymerizes to diacetyldicyanide.

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