高等学校化学学报

高等学校化学学报 ›› 1983, Vol. 4 ›› Issue (3): 305.

• 论文 • 上一篇    下一篇

非离子表面活性剂胶束增溶显色反应机理的研究(Ⅱ)——非离子表面活性剂对Me2+-PAN的作用及其增溶萃取公式

戚文彬, 傅克廷   

  1. 杭州大学化学系
  • 收稿日期:1982-01-21 出版日期:1983-06-24 发布日期:1983-06-24

STUDY OF EFFECT OF NONIONIC SURFACTANTS MICELLAE ON COLOR REACTIONS (Ⅱ)——THE EFFECT OF THE NONIONIC SURFACTANTS AND A GENERAL FORMULA FOR SOLUBILIZING EXTRACTION OF Me3+-PAN

Qi Wenbin, Fu Keting   

  1. Department of Chemistry, Hangzhou University, Hangzhou
  • Received:1982-01-21 Online:1983-06-24 Published:1983-06-24

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摘要： 本文以分光光度法研究了在TritonX-100胶束存在下,若干二价金属离子(Me2+)与1-(2-吡啶偶氮)-2-茶酚(PAN)的络合反应。导出了用聚氧乙烯型非离子表面活性剂增溶萃取Me2+-PAN螯合物的通式,并指出了利用此公式发生偏差的原因。

Abstract: The Complexation reactions between divalent metals (Ni2+,Cd2+,Zn2+,Mn2+,Pd2+, Hg2+, Pb2+ ) and l-(2-pyridylazo)-2-naphthol (PAN) in the presence of Triton X-100 micellae have been investigated spectrophotomet-rically. It is concluded that Me2+ -PAN-Triton-X-100 systems may be regarded as pseudo-phase extraction.The following general formula for solubilizing extraction of Me2+-PANchelates by nonionic surfactants of polyoxyethylene type has been deduced.It resembles as that of solvent extraction system. The validity of the formula was tested by using it for solubilizing extraction of Ni2+-PAN, Mn2+-PAN, Zn2+-PAN, Cu2+-PAN and Cd2+-PAN, while the pseudo-phase extraction model of Me2+-PAN-Triton X-100 systems further proved.The causes of possible deviation for using the formala is also pointed out.

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