中文摘要：

通过向十二烷基硫酸钠（SDS）/正丁醇/二甲苯/水溶液（FeSO4）组成的微乳体系中加入不同浓度NaCl溶液,测量体系在不同温度下的电导率和pH值,讨论了盐效应和温度对微乳体系的影响.结果表明：体系的电导率随着盐浓度增加和温度升高而变大,pH值随温度的升高而减小.向FeSO4微乳液体系加入NaCl溶液后发现：当温度低于20℃时,加入0.01 mol.L^-1NaCl溶液,体系的电导率即高于原微乳液体系的电导率;当温度在20-35℃之间时,氯化钠浓度需达到0.06 mol.L^-1,体系的电导率才高于原体系的电导率;温度高于35℃时,只有氯化钠浓度超过0.08 mol.L^-1,体系的电导率才会高于原体系的电导率.

英文摘要：

The NaCl aqueous solutions with different concentration were added to microemulsion system consisting of sodium dodecyl sulfate/n-butanol/xylene/aqueous solution （FeSO4）. The conductivity and pH value of the microemulsion system were measured at different temperature, the influence of salt effect and temperature was studied. The results showed that, the conductivity of the microemulsion increased with the increasing of salt concentration and temperature, while the pH value decreased with temperature rising. When the NaCl aqueous solution was added to the microemulsion system containing FeSO4, the conductivity of the system was higher than the original one under the conditions of NaCl aqueous concentration was 0.01 mol·L^- 1 and the temperature was lower than 20℃. Between 20 - 35℃;, the NaCl aqueous concentration must reach 0. 06 mol·L^-1 for obtaining the original conductivity. Above 35℃, the system conductivity was higher than the original one only when the NaCl aqueous concentration was higher than 0.08 mol·L^- 1.