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化学学报
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化学学报 ›› 1963, Vol. 29 ›› Issue (5): 332-335. 上一篇    下一篇

论文

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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利用N-苯甲酰β-苯胺乙酸酯在酒石酸溶液中的水解作用, 可以自均匀溶液析出結晶状的N-苯甲酰β-苯胲-鈮絡合物.在65—70°加热二小时可定量沉淀, 此时溶液的pH值自8.0降至5.0, 放置过夜后沉淀的粗成为NbO(C13H10O2N)3.N-苯甲酰β-苯胲乙酸酯可由BPHA的吡啶溶液与乙酸酐制得.

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.