Sentence Examples


  • The tertiary phosphines are characterized by their readiness to pass into derivatives containing pentavalent phosphorus, and consequently they form addition compounds with sulphur, carbon bisulphide, chlorine, bromine, the halogen acids and the alkyl halides with great readiness.
  • For these reasons, one must assume the existence of pentavalent nitrogen in the diazonium salts, in order to account for their basic properties.
  • Dissolved in hydrochloric acid at - 20°, it yields with solutions of the alkaline chlorides compounds of the type MC1 CrOC1 3, pointing to pentavalent chromium.
  • In general it is pentavalent, but divalent compounds are known.
  • These involve pentavalent nitrogen.
 

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