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Theoretical Calculation of Activity Coefficient of Electrolytes

Zhang Suobang; Han Shijun(Chem. Dep. of Zhejiang Univ ., Hangzhou 310027)  
Abstract In this paper a new formula of activity coemcicnt of electrolytes has been proposed in termsof Stokes and Robinson Theory (1948). The new formula has all of the advantages of Stokesand Robinson formula (1948), but does not contain osmotic coemcicnt(9). Futhermore, the newformula is applicable to single--solvent and mixed--solvent electrolyte systems. The achvitycoefficients of 22 electrolyte -- containing systems are calculated by the new formula. The resultshave shown good accuracy. The mean or relative deviation of every processed system is less than1%.
【Fund】: 国家教委博士学科点专项基金
【CateGory Index】: O604
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