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Citation: Li Ji-Cai, Zhai Zong-Xi, Zeng Zhong-Min, Wang Lu-Ying. Enthalpies of Dilution and Relative Apparent Molal Enthalpies of the Major Aqueous Salts of Salt Lakes at 298.15K[J]. Acta Physico-Chimica Sinica, ;1994, 10(08): 759-764. doi: 10.3866/PKU.WHXB19940819 shu

Enthalpies of Dilution and Relative Apparent Molal Enthalpies of the Major Aqueous Salts of Salt Lakes at 298.15K

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

Received Date: 24 April 1993
Available Online: 15 August 1994

The heat of dilution of aqueous solution of the chloride(KCl, NaCl, MgCl2,CaCl2) and sulfate (Na2SO4, K2SO4, MgSO4) of Salt Lakes were measured over a concentration range of 0.05-2.1mol•kg-1 at 298.15K. The data were extrapolated to infinite dilution by use of the Debye-Huckel limition law to obtain relative apparent molal enthalpies (ФLi). The enthalpies of dilution were calculated using the ion interaction model of Pitzer. The experimental enthalpies (△He) were compared with calculated values (△Hc)of dilution.
- Heat of dilution,
- Apparent molal enthalpy,
- Chloride,
- Sulfate,
- Salt Lakes
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