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《Journal of Baoji University of Arts and Sciences(Natural Science Edition)》 2009-02
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Determination of the infinite dilution molar conductivity of DyCl_3 in isopropanol

WANG Wei-dong,WU Hui-juan,LIN Shu-xiong(College of Chemistry and Environmental Engineering,Hubei Normal University,Huangshi 435002,Hubei,China)  
Aim To study the conductivity changes of DyCl3 in isopropanol.Methods Firstly,the conductivity of DyCl3 in isopropanol was determined at 303.15 K to 313.15 K to calculate the molar conductivity of DyCl3;secondly,Kohlrausch formula and Origin software were used to make the diagram of linear fitting,finally the diagram was pushed outside and the molar conductivity at infinite dilution(λ0 /(S·cm2 ·mol-1) of DyCl3 in isopropanol was calculated,and the influence of the temperature on λ0/(S·cm2·mol-1) of DyCl3 electrolyte solution was investigated.Results By the experiments,λ0/(S·cm2·mol-1) of DyCl3 in isopropanol were obtained with linear fitting method at different temperatures,λ0/(S·cm2·mol-1) is 4.83,6.31 and 6.46 respectively at 303.15 K,308.15 K and 313.15 K.Conclusion It is found that there is a linear relation between λ0 of DyCl3 in isopropanol and the temperature in the temperature range of 303.15 K to 313.15 K,and λ0 became larger with increase in the temperature got higher.
【Fund】: 湖北省教育厅重点科研项目(D20082202);; 湖北师范学院应用研究项目(2007E02)
【CateGory Index】: O646
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