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Acta Chimica Sinica ›› 1963, Vol. 29 ›› Issue (5): 332-335. Previous Articles     Next Articles

用N-苯甲酰β-苯胲乙酸酯均匀沉淀鈮及沉淀的组成

孙德中, 蒋英   

  1. 北京大学化学系
  • 投稿日期:1962-10-25 发布日期:2013-06-03

PRECIPITATION OF NIOBIUM WITH N-BENZOYL N-PHENYL-HYDROXYLAMINE FROM HOMOGENEOUS SOLUTION AND THE COMPOSITION OF THE PRECIPITATE

SUN TE-ZHUNG, JIANG YING   

  1. Department of Chemistry, Peking University
  • Received:1962-10-25 Published:2013-06-03

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The complex of niobium with N-benzoyl N-phenylhydroxylamine was precipitated in coarse crystalline form from homogeneous solution by hydrolysis of the acetic ester of N-benzoyl N-phenylhydroxylamine in an aqueous ethanolic tartrate solution of niobium at 65-70°.Precipitation is complete in two hours, during which the pH vs}lue is lowered from 8.0 to 5.0.After standing overnight, the complex has the composition NbO(C13H10O2N)3.