氯化1-十烷基-3-甲基咪唑与甲基橙的相互作用

Interactions between 1-decylalkyl-3-methylimidazolium chloride and Methyl Orange

用电导法分别测定了在288.15,298.15 K和308.15 K下甲基橙(MO)水溶液和MO与离子液体型表面活性剂氯化1-十烷基-3-甲基咪唑(C10mim Cl)之间的电导率。研究表明MO与C10mim Cl以等摩尔比1∶1结合,在相应温度下的结合常数分别为8.87×104,5.52×104和2.46×104 L·mol-1。根据结合常数确定了上述相互作用过程的热力学函数,结合是自发过程,温度越低过程越易进行。

At the temperatures of 288.15, 298.15 and 308.15 K, the interaction between ionic liquid surfaetant, 1-dodeeyl-3-methylimidazolium bromine （Cl0mimCl） and anionic dye, methyl orange （MO） was studied using a conductometric method in aqueous solutions. The results show that the equilibrium constants are 8.87×10^4, 5.52×10^4和2.46×10^4L·mol^-1, respectively. According to determining the equilibrium constants interaction process of gibbs free energy （AGO）, the binding process is an enthalpy driving, the lower the temperature process more easily.