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KBph4在(CH3OH-H2O)混合溶剂中热力学性质的测定和研究
Determination and Study on Thermodynamical Properties of KBph4 in (CH3OH-H2O) Mixtures at 298.15 K
【摘要】 测定了298.15KKBph4在(CH3OH-H2O)混合溶剂中的溶解度,并根据热力学原理求算了KBph4在此混合溶剂中的饱和摩尔活度系数,离子缔合度和缔合常数,及KBph4由水(H2O)至混合溶剂(CH3OH-H2O)的标准迁移Gibbs自由能,并对KBph4的热力学性质随混合溶剂组成(x)的变化进行了初步的讨论.
【Abstract】 In this paper,the solubilities of KBph4 in diferent compositions (CH3OH-H2O) mixtures at 298.15 K were determined by photometric method,and the activity coefficients,associate degrees,solubility products of ions of KBph4 in (CH3OH-H2O mixtures and standard Gibbs free energies of transfer of KBph4 from the pure water to ten compositions (CH3OH-H2O) mixtures at above experimental temperatures were obtained by thermodynamical principle.The changes of above thermodynamical properties of KBph4 with organic composition (x) in (CH3OH-H2O) mixtures were discussed from theory of association and solvation of ions in solution.
【Key words】 solubility; activity coefficient; Gibbs free eneryy of tramsfer;
- 【文献出处】 聊城大学学报(自然科学版) ,Journal of Liaocheng University(Natural Science Edition) , 编辑部邮箱 ,2006年02期
- 【分类号】O645.164
- 【下载频次】27