HCl在硫酸铟水溶液中表观热力学性质的研究  

A Study on the Apparent Thermodynamic Properties of HCl in Indium Sulfate Solutions

作　　者：王琴萍[1] 张莉[1] 洪梅[1] 邢长宇[1] 吕殿祯[1] 

机构地区：[1]辽宁大学化学科学与工程学院,辽宁沈阳110036

出　　处：《辽宁大学学报（自然科学版）》2003年第2期147-149,共3页Journal of Liaoning University：Natural Sciences Edition

摘　　要：在HCl—In_2(SO_4)_3—H_2O体系中,恒定溶液总离子强度和In_2(SO_4)_3在溶液中的离子强度分数,应用经典的电动势方法测定无液体接界电池(A)在278.15～318.15K温度范围内的电动势: Pt,H_2(101.325kPa)lHCl(m_A),In_2(SO_4)_3(m_B),H_2OlAgCl-Ag(A)根据电池(A)的电动势数据,计算了混合溶液中HCl的活度系数r_A,当指定温度和保持溶液中总离子强度恒定时,进一步讨论了HCl的活度系数与溶液中In_2(SO_4)_3的离子强度分数的关系,结果表明,在溶液总离子强度较低时,HCl的活度系数服从Harned规则。The apparent thermodynamic properties of the system HCl-In2(SO4)3-H2O were studied by emf measurement in the cells without liquid junction: Pt,H2(101.325kPa)|HCl(mA),In2(SO4)3(mB),H2OlAgCl-Ag (A) at the constant total ionic strength I=0.2,0.4,0.6,0.8,1.0,1.5 mol kg-1 and yB=0.0000,0.1000,0.2000, 0.3000,0.5000,0.7000 at different temperatures from 278.15 to 318.15 K. The activity coefficients of HCl rA in the solution have been determined from cell (A) . The results show that the activity coefficients of HCl still obey Harned Rule at a low of total ionic strength.

关 键 词：硫酸铟水溶液 表观热力学性质 HCL 活度系数 电动势 离子强度 

分 类 号：O614.372[理学—无机化学] O645.164[理学—化学]