Direct Determination of the Distribution Coefficient of Tridecyl Dimethyl Phosphine Oxide between Water and Hexane

Valentin B. Fainerman; Altynay A. Sharipova; Saule B. Aidarova; Volodymyr I. Kovalchuk; Eugene V. Aksenenko; Alexander V. Makievski; Reinhard Miller

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Direct Determination of the Distribution Coefficient of Tridecyl Dimethyl Phosphine Oxide between Water and Hexane

机译：直接测定十三烷基二甲基氧化膦在水和己烷中的分配系数

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Drop profile analysis tensiometry is applied to determine the distribution coefficient of a nonionic surfactant for a water/hexane system. The basic idea is to measure the interfacial tension isotherm in two configurations: a hexane drop immersed in the surfactant aqueous solutions at different bulk concentrations, and a water drop immersed into a hexane solution of the same surfactant. Both types of experiments lead to an isotherm for the equilibrium interfacial tensions with the same slope but with a concentration shift between them. This shift refers exactly to the value of the distribution coefficient.

机译：应用液滴轮廓分析张力测定法确定用于水/己烷系统的非离子表面活性剂的分配系数。基本思想是以两种配置来测量界面张力等温线：以不同的堆积浓度浸入表面活性剂水溶液中的己烷滴，以及浸入相同表面活性剂的己烷溶液中的水滴。两种类型的实验均会导致平衡界面张力的等温线具有相同的斜率，但两者之间存在浓度偏移。该偏移恰好是指分配系数的值。

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《Colloids and Interfaces》 |2018年第3期|共页
作者
Valentin B. Fainerman; Altynay A. Sharipova; Saule B. Aidarova; Volodymyr I. Kovalchuk; Eugene V. Aksenenko; Alexander V. Makievski; Reinhard Miller;
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中图分类物理学;
关键词
adsorption kineticsnonionic surfactantdiffusion-controlled adsorptionwater-oil interfacedistribution coefficientsurfactant partitioningdrop profile analysis tensiometry;

机译：吸附动力学非离子表面活性剂扩散控制吸附水油界面分布系数表面活性剂分配液滴分布张力分析;

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1. Dilational interfacial rheology of tridecyl dimethyl phosphine oxide adsorption layers at the water/hexane interface [J] . Kovalchuk V. I., Aksenenko E. V., Makievski A. V., Journal of Colloid and Interface Science . 2019,第期

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2. Interfacial Properties of Tridecyl Dimethyl Phosphine Oxide Adsorbed at the Surface of a Solution Drop in Hexane Saturated Air [J] . Valentin B. Fainerman, Eugene V. Aksenenko, Alexander V. Makievski, Colloids and Interfaces . 2020,第2期

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3. Mutual and Intradiffusion Coefficients for the Binary System approx=-Decyl Dimethyl Phosphine Oxide+Water at 25°C [J] . Gerardino DErrico, Gaetano Mangiapia, Ornella Ortona Journal of Chemical and Engineering Data: the ACS Journal for Data . 2008,第7期

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Direct Determination of the Distribution Coefficient of Tridecyl Dimethyl Phosphine Oxide between Water and Hexane

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