正负离子表面活性剂混合溶液的增溶作用

The solubilization of the catanionic surfactants mixture

采用分光光度法 ,测定了十六烷基三甲基溴化铵 ( CTAB) -十二烷基硫酸钠 ( SDS)混合体系在不同的条件下对苯、甲苯的增溶作用。结果表明 :在固定 CTAB浓度为 0 .0 0 1 mol· L-3 的条件下 ,改变 SDS的浓度或在 CTAB- SDS混合体系中改变 Na Br浓度对苯、甲苯的增溶能力呈“V”字形曲线而变化 ,随着温度的升高 。

The solubilization of benzene and toluene in cetyltrimethylammonium bromide(CTAB) sodium dodecyl sulfate(SDS)mixture system has been measured by the photometer method. The results show that the curve of the maximal solubilization amount of benzene and toluene is 'V' shape at a constant concentration ( 0.001 mol·L -1 ) of CTAB,the addition of a small amount of SDS,or TO change concentration of sodium bromide(NaBr) in CTAB SDS mixture solution .