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《International Medicine & Health Guidance News》 2006-15
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Study on Phase Behavior and Conductivity of Sodium Dodecyl Sulfate Microemulsions

WU Wenjuan WANG Juping YANG ShaohuDepartment of Physical Chemistry, Guangdong Pharmaceutical University,Guangzhou 510006,China  
Objective The phase behavior and conductivity of the sodium dodecyl sulfate (SDS)/ n-butanol/ n-heptane/ water microemulsion systems were studied.Methods The conductivities of themicroemulsion systems were measured by electrical chemistry method.Results The percolative conductionare all found in the microemulsion systems(km=2.33).The conductivities and the apparent activeenergies of the systems increase with the raising of the temperature.The SDS microemulsion systems havegood resistance to acid and alkali within the limits of pH2.5~11.Conclusion The structure andstructural transition for microemulsion systems can be dealt with by conductivity measurement.
【CateGory Index】: R313
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