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首页> 外文期刊>Journal of Dispersion Science and Technology >Surface tension, activity of counterion, and conductivity of the quaternary system dodecyldimethylamine oxide, TX-100, HCl, and water
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Surface tension, activity of counterion, and conductivity of the quaternary system dodecyldimethylamine oxide, TX-100, HCl, and water

机译：表面张力，抗衡离子的活性以及四元体系十二烷基二甲基氧化胺，TX-100，HCl和水的电导率

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摘要

We have investigated the mixing behavior of the mixtures of dodecyldimethylamine oxide (DDAO) and Triton X-100 (TX-100) at different ratios of the two surfactants and at different values of pH. From the equilibrium surface tension measurements, the critical micelle concentration (CMC) and surface tensions at CMC data were obtained as functions of the composition. For the binary mixtures of dodecyldimethylamine oxide and TX-100 at different ratios in the natural values of pH, the behaviors of the mixtures deviate positively from ideal during micellization. The minimum of CMC of the mixtures of dodecyldimethylamine oxide and Triton X-100 was observed in the range 4.0 < pH < 6.0. The bound fraction of counterion (Cl-) increased with the decrease of pH. At pH = 4.99, the activities of the counterion decreased with the increase of the concentration of TX-100 at a constant concentration of DDAO. At pH = 1.96, the activities of the counterion increased with the increase of the concentration of TX-100. However, the conductivities of the solution decreased with the increase of the concentration of TX-100 at both pH = 4.99 and pH = 1.96. The experimental results show that the effect of TX-100 on the activities of the counterion at pH = 4.99 is different from that at pH = 1.96.
机译：我们研究了十二烷基二甲基氧化胺（DDAO）和Triton X-100（TX-100）在两种表面活性剂的不同比例和不同pH值下的混合行为。从平衡表面张力测量，获得临界胶束浓度（CMC）和CMC数据处的表面张力作为组合物的函数。对于十二烷基二甲基氧化胺和TX-100的二元混合物，其pH值的自然比例不同，在胶束化过程中，混合物的行为与理想情况成正比。在4.0 H <6.0的范围内观察到十二烷基二甲基氧化胺和Triton X-100的混合物的CMC最小值。抗衡离子（Cl-）的结合分数随pH的降低而增加。在pH = 4.99时，在恒定DDAO浓度下，抗衡离子的活性随TX-100浓度的增加而降低。在pH = 1.96时，抗衡离子的活性随TX-100浓度的增加而增加。然而，在pH = 4.99和pH = 1.96时，溶液的电导率随TX-100浓度的增加而降低。实验结果表明，TX-100对pH = 4.99的抗衡离子活性的影响不同于pH = 1.96时的抗衡离子活性。

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