Acta Phys. -Chim. Sin. ›› 1992, Vol. 8 ›› Issue (01): 94-99.doi: 10.3866/PKU.WHXB19920117

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Thermodynamic Properties of KCl-LiCl-H2O System at 25 ℃

Li Jun; Song Peng-Sheng; Yao Yan; Wang Rui-Ling   

  1. Institute of Salt Lakes, Academia Sinica, Xining 810008
  • Received:1990-09-25 Revised:1991-06-24 Published:1992-02-15
  • Contact: Li Jun

Abstract: The activity coefficients of KCl and LiCl in KCl-LiCl aqueous mixtures have been measured at 25 ℃ in ionic strength range of 0.1~4.0 mol·kg~(-1). The measurement were made using K-ISE and Li-ISE vs. Cl-ISE in a wide range of compositions from pure KCl to pure LiCl. The data were fitted to Pitzer's equation using regressin method, Pitzer parameters were obtained.

Key words: KCl-LiCl-H2O system, Activity coeffcients, Ionic selective electrode, Pitzer equation