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化学学报
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化学学报 ›› 1960, Vol. 26 ›› Issue (2): 111-113. 上一篇    下一篇

研究简报

硝酸根和铅离子的络合物的极谱研究

白明彰1, 胡惠容2, 章健民2   

  1. 1. 内蒙古畜牧兽医学院;
    2. 内蒙古医学院
  • 投稿日期:1959-09-25 发布日期:2013-06-03

A POLAROGRAPHIC STUDY OF LEAD NITRATE COMPLEXES

BAI MING-ZHANG1, HU HUI-RONG2, ZHANG JIAN-MIN2   

  1. 1. Veterinary College, Inner Mongolia;
    2. Medical College, Inner Mongolia
  • Received:1959-09-25 Published:2013-06-03

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采用蒋和徐提出从极谱半波电势求络离子的逐级稳定常数的方法,研究铅离子和硝酸根的络合物,测得PbNO3+、Pb(NO3)2和Pb(NO3)3-的逐级稳定常数分别为:K1=2.34,K2=1.30,K3=3.25.

The half wave of the lead ion was determinted at 25℃ in sodium perchlorate-sodium nitrate mixtures over the range 0-2.0 M sodium nitrate at an ionic strength of 3.00. From the data, the existence of Pb (N03)2, Pb(N03)3-, in addition to the species PbNO3+and Pb++ as found by previous investigators[1~7] was revealed. The consecutive stability constants were found to be: K1=2.34±0.02,K2=1.30±0.03, K3=3.25±0.12.