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首页> 外文期刊>Journal of Colloid and Interface Science >Interfacial activity of copper(II) complexes with chelating ligands and individual hydrophobic extractants in model extraction systems I. Study of equilibrium interfacial tension at the hydrocarbon/water interface for systems with copper(II) complexe
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Interfacial activity of copper(II) complexes with chelating ligands and individual hydrophobic extractants in model extraction systems I. Study of equilibrium interfacial tension at the hydrocarbon/water interface for systems with copper(II) complexe

机译：具有螯合配体和个别疏水性萃取剂的铜（II）配合物在模型萃取系统中的界面活性I.含铜（II）配合物的系统在烃/水界面处的平衡界面张力的研究

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摘要

The equilibrium interfacial tensions at the hydrocarbon/water interfaces, as measured at 20 degreesC for copper(II) complexes with the chelating ligands beta-diketone (1-phenyl-1,3-decanedione), 2-hydroxy-5-t-nonylacetophenone oxime, 2-hydroxy-5-t-octylacetophenone and 2-hydroxy-5-t-octylbenzophenone oxime, as well as for individual extractants, are discussed. The interfacial tension and surface excess isotherms were determined and interpreted. The experimentally obtained curves were Successfully matched with the Szyszkowski and Frumkin equations. It was found that the tendencies of interfacial tension to be lower at the hydrocarbon/water interfaces for copper(II) complexes and individual chelating ligands are similar. However, the effectiveness and efficiency of adsorption for chelatin, extractants and copper(II) complexes are quite different, irrespective of the type of hydrocarbon used as the organic diluent. On the other hand, the type of organic phase affects the interfacial activity of the investigated compounds. Moreover, it was shown that the way of preparing the measurement systems with the copper(II) complex influences the results of its interfacial activity. (C) 2004 Elsevier Inc. All rights reserved.
机译：在20°C下，铜（II）与螯合配体β-二酮（1-苯基-1,3-癸二酮），2-羟基-5-t-壬基苯乙酮的络合物在烃/水界面的平衡界面张力讨论了肟，2-羟基-5-叔辛基苯乙酮和2-羟基-5-叔辛基二苯甲酮肟以及各种萃取剂。确定并解释了界面张力和表面过量等温线。实验获得的曲线已成功地与Szyszkowski和Frumkin方程匹配。已经发现，对于铜（II）配合物和单独的螯合配体，在烃/水界面处界面张力的趋势较低。但是，不管用作有机稀释剂的烃类型如何，对螯合剂，萃取剂和铜（II）络合物的吸附效率和效率都大不相同。另一方面，有机相的类型会影响所研究化合物的界面活性。此外，已表明用铜（II）配合物制备测量系统的方式会影响其界面活性的结果。 （C）2004 Elsevier Inc.保留所有权利。

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