8th Liquid Matter Conference September 6-10, 2011 Wien, Austria ...

Tue 611:23-14:00P2.31The theoretical analysis of size, average number of waterdroplets and electrical conductivity values inSDS/(Hexylamine+Heptane)(1:1)/water ternarymicroemulsion systemParviz Hossein Khani 1 and Hamid Moazzami1 iau south branch tehran iran, no81 rezwan6th, koyeh daneshgah, hakimiah, tehran pars,52205753, TEHRAN IRAN, IranIn SDS/(Hexylamine+Heptane)(1:1)/water microemulsion system, conductivity behavior and parametersof water droplets can be described by the percolation and effective medium theories.The initial solutions consists of different sodium dodecyl sulfate concentrations in (Hexylamine +Heptane)(1:1). The addition of water concentration to each initial solution tends to formation ofreverse micelle water droplet structure. In this paper, the electrical conductivity of the solution, theradius and the average number of droplets were calculated with increasing water concentration ininitial mother solution. The results indicated that: 1. The average number of droplets reduces withincreasing water concentration. 2. The radius of droplets extended with addition of water concentration.The above two arguments tends to enlargment and recombination of water droplets. 3. Theelectrical conductivity values in initial stage is low and it increases with addition of water content,then at saturation stage turns to fate trend. This behavior change as a function of water concentration,is reflected due to phase transformation from droplet like to bicontinuous structure. Thepoints corresponding to this phase transformation demarcated on ternery phase diagram. In thisregard, the phase boundary between two types of microemulsion structure, oil continuous waterdroplets and bicontinuous structure were delineated on ternary phase diagram.31