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Citation: Liu Wen-Bin, Li Yi-Gui, Lu Jiu-Fang;Li Chun-Xi, . Eqution of State for Predicting Densities of Aqueous Electrolytes at High Pressure and Temperature by Perturbation Theory[J]. Acta Physico-Chimica Sinica, ;1997, 13(08): 736-740. doi: 10.3866/PKU.WHXB19970811 shu

Eqution of State for Predicting Densities of Aqueous Electrolytes at High Pressure and Temperature by Perturbation Theory

1.
Department of Chemical Engineering,Tsinghua University,Beijing 100084

Corresponding author: ,
Received Date: 4 November 1996
Available Online: 15 August 1997

The equation of state for aqueous electrolytes based on perturbation theory is established. By using the water molecular parameters and Pauling diameters of canons and anions without any additional parameters, the densities of 9 aqueous electrolyte systems (NaCl, CaCl2,KCl, LiCl, BaCl2, MgCl2, NaBr, Na2SO4 and MgSO4) at high pressure and temperature are predicted. The predicted accuracy of densities is satisfactory. The accuracy can be improved by using the fitted canon diameter instead of Pauling diameters.
- Perturbation theory,
- Equation of state,
- Density,
- Aqueous electrolytes
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