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《Chemical Industry and Engineering》 2011-03
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Activity Coefficient Measurement of NaBr,NaCl and KBr in Selected Organic Solvents

JIANG Bo,WANG Li-sheng,LI Mi-yi(School of Chemical Engineering and the Environment,Beijing Institute of Technology,Beijing 100081,China)  
In this paper,the conductivities of NaBr in methanol,ethanol,1-propanol,2-propanol,NaCl and KBr in methanol,ethanol system(solution concentration within 0.1 mol.L-1) were determined at 298.15 K,313.15 K and 323.15 K at atmosphere pressure respectively.The mean ion activity coefficients of NaBr,NaCl and KBr in various organic solvents were calculated according to Debye-Hücker limiting law and Onsager-Falkenhangen equations.The effects of concentration and temperature on activity coefficients of electrolyte solutions were discussed.The calculated results were compared with those of NaBr in ethanol,NaCl in methanol and KBr in methanol reported in literature.The results show that the experimental data obtained by conductivity method have good agreement with data in literature.
【CateGory Index】: O645.1
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