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Citation: Bao Jian-Bin, Huang Qiang, Chen Geng-Hua, Han Shi-Jun. Determination of Large Value Activity Coefficients at Infinite Dilution[J]. Acta Physico-Chimica Sinica, ;1993, 9(06): 724-727. doi: 10.3866/PKU.WHXB19930602 shu

Determination of Large Value Activity Coefficients at Infinite Dilution

1.
Department of Chemistry, Zhejiang University, Hangzhou 310027

Received Date: 19 July 1993
Available Online: 15 December 1993

Continuous sampling technique—an improvement of the gas stripping method has been proposed for the determination of large value activity coefficients at infinite dilution (γ~∞>10~2). In this technique, the outlet gas flow from the equilibrium cell is introduced directly into a detector of a gas chromatograph. The curve of the concentration of the solute in the flow gas versus the stripping time will be gained continueously, and the variation slope can be obtained more precisely. Experimental activity coefficient results have been compared with the literature values which were obtained by the other methods.
- Large value activity coefficients at infinite dilution; Continuous sampling technique; Gas stripping method
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