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Citation: Wang Rui-Ling, Yao Yan, Wu Guo-Liang. Thermodynamic Properties of Electrolyte Solutions:An EMF Study of System LiCl-MgCl₂-H₂O[J]. Acta Physico-Chimica Sinica, ;1993, 9(03): 357-365. doi: 10.3866/PKU.WHXB19930314 shu

Thermodynamic Properties of Electrolyte Solutions:An EMF Study of System LiCl-MgCl₂-H₂O

1.
Qinghai Institute of Salt Lakes, Academia Sinica, Xining 810008

Received Date: 14 November 1991
Available Online: 15 June 1993

The activity coefficients of aqueous LiCl in system LiCl-MgCl_2-H_2O were determined at 25 ℃ in the total ionic strength range from 0.05 to 6.0 mol·kg~(-1) by E.M.F. method using a lithium ion-selective electrode and Ag/AgCl electrode.
The electrode pairs used in present work were prepared in our laboratory and performance tests were carried out. linear near-Nernst response, od reproducibility, stability and selectivity were observed.
The Harned coefficients, Pitzer ternary interaction parameters and Scatchard parameters were evaluated from present measurement by using multiple regression. The whole range of the ionic strengths studied.
The experimental activity coefficients were compared with which calculated by Pitzer equation with known parameters from experimental osmotic coefficients.
- Activity coefficients; Ternary system LiCl-MgCl₂-H₂O; Li sensitive electrode; E.M.F. method
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Thermodynamic Properties of Electrolyte Solutions:An EMF Study of System LiCl-MgCl2-H2O

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Thermodynamic Properties of Electrolyte Solutions:An EMF Study of System LiCl-MgCl₂-H₂O