298K时NdCl_3在混合溶剂(DMF-H_2O)中电导的研究  

Study on the conductivity of rare earths salt NdCl_3 in DMF and H_2O at 298 K

作　　者：王卫东[1] 

机构地区：[1]湖北师范学院化学与环境工程系,湖北黄石435002

出　　处：《宝鸡文理学院学报（自然科学版）》2005年第2期116-118,共3页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：湖北师范学院自然科学基金项目(2003B10);湖北师范学院人才引进资助科研项目(2004R02)

摘　　要：在298K时测定了NdCl3 在混合溶剂N,N 二甲基甲酰胺水(DMF H2O)中的电导率,利用公式计算了稀土氯化盐NdCl3 的摩尔电导率,使用Origin软件进行线性拟合,外推得到NdCl3 在混合溶剂(DMF H2O)中的无限稀释摩尔电导率λ0=300.01S·cm2·mol-1,并讨论了在298K时浓度对NdCl3 在混合溶剂(DMF H2O)中电导率和摩尔电导率的影响。在298K温度时随溶液浓度的增加,稀土氯化盐NdCl3 在混合溶剂(DMF H2O)中的电导率逐渐升高;摩尔电导率逐渐减小。Determined electrice conductivity of rare earths salt NdCl_3 in DMF and H_2O at 298K ,The use of formula has calculated the molar conductivity of rare earths salt NdCl_3 in DMF and H_2O. The use of Origin Software has made the diagram to push outside and calculated the molar conductivity at infinite clilutionλ_0=300.01 S·cm^2·mol^(-1) of NdCl_3 in DMF and H_2O obtained by linear fiting, and discussed the effect of the electrice conductivity and the molar conductivity of rare earths salt NdCl_3 in DMF and H_2O with concentration at 298 K. With the inereasing of the concentration of rare earths salt in the solution at 298 K, the conductivity proportion of rare earths salt in the solution got higher and the molar conductivity got lower.

关 键 词：稀土盐 电导率 摩尔电导率 无限稀释摩尔电导率 混合溶剂 NDCL3 DMF(N N-二甲基 甲酰胺) 

分 类 号：O614.33[理学—无机化学]