Extension of the Dense System Equation of State to Electrolyte Solutions

Document Type : Research Article

Authors

Department of Chemistry, Sharif University of Technology, P. O. Box 11365-8639 Tehran, I.R. IRAN

Abstract

In this work we have applied the Dense System Equation of State (DSEOS) to electrolyte solutions. We have found that this equation of state can predict the density of electrolyte solutions very accurately. It has been tested for different electrolytes solutions at different temperatures and compositions. A hypothetical binary model has been applied to find the dependencies of parameters of this equation of state on solution temperature and composition. Using such a simple model the heat capacity of NaCl solution was calculated for which the absolute percent deviation is less than 2 %. The DSEOS is tested for the following electrolytes: Na2SO4, MgCl2, MgSO4, KCl, NaCl, and NaBr. We found that the DSEOS predicts the density of aqueous electrolyte solutions mentioned above accurately so that its percent error in density is less than 0.04.

Keywords

Main Subjects

References

[1] Loehe, J. R. and Donohue, M. D. , AICHE J, 43, 1980 (1997).
[2] Anderko, A. , Wang, P. , and Ralf, M. , Fluid Phase equilibria, 194-197, 123 (2002).
[3] Behzadi, B. , Patel, B. H. , Galindo, A. , and Ghotbi, C. , Fluid Phase equilibria, 236, 241 (2005).
[4] Liu, Z., Wang, W., and Li, Y. , Fluid Phase equilibria, 227, 147 (2005).
[5] Masoudi, R., Arjmandi, M., and Tohidi, B., Chemical Engineering Science, 58, 1743 (2003).
[6] Given, J. A. and Stell, G. , J. Chem. Phys., 106 (3), 1195 (1997).
[7] Parsafar, G. A. and Mason, E. A. , J. Phys. Chem., 97, 9048 (1993).
[8] Parsafar, G. A. , J. Sci. I.R. Iran, 2, 111 (1991).
[9]  Parsafar, G. A. , Farzi, N. , and Najafi, B. , Int. J. Thermophys., 18, 1197 (1997).
[10] Parsafar, G. A. , Kermanpour, F. and Najafi, B. , J. Phys. Chem. B, 103, 7287 (1999).
[11] Parsafar, G. A. and Mason, E. A. , Phys. Rev. B, 49, 3049, (1994).
[12] Rogers, P. S. Z. and Pitzer, K. S. , J. Phys. Chem. Ref. Data, 11, 15 (1982).
[13] Rowe, A. , James, J. R. , and Chou, C. S. , J. Chem. Eng. Data, 15, 61 (1970).
[14] Zafarani-Moattar, M. T. and Jahanbin-Sardroodi, J., Fluid Phase Equilibria, 209, 1 (2003).
[15] Humffray, A. A. , AICHE J. 35, 293 (1989).
[16] Gates, J. A. and Wood, R. H. , J. Chem. Eng. Data , 30, 44 (1985).
[17] Gibson, R. E. and Leoffler, O. H. , Annals. N. Y. Acad. Sci., 51, 727 (1949).
[18] Perron, G. , Fortier, J. L. , and Desnoyers, J. E. , J. Chem. Thermodyn., 7, 1177 (1975).
[19] Chen, C. T. , Emmet, R. T. , and Millero, F. J. , J. Chem. Eng. Data, 22, 201, (1977).
[20] Simonson, J. M. and Ryther, R. T. , J. Chem. Eng. Data, 34, 57 (1989).
[21] Archer, D. G. , J. Phys. Chem. Ref. Data, 20, 509, (1991).
[22] Tanner, J. E. and Lamb, F. W. , J. Sol. Chem., 7, 303 (1978).
[23] Picker, P., Leduc, P., Philip, P. R. and Desnoyers, J. E., J. Chem. Thermodyn., 3, 631 (1971).
[24] Gates, J. A. , Tillet, D. M. , White, D. E. and Wood, R. H. , J. Chem. Thermodyn., 19, 131(1987).
[25] Simard, M. A. and Fortuer, J. L. , Can. J. Chem., 59, 3208 (1981).
[26] Sennay, L. and Brombly, L. A., J. Chem. Eng. Data, 18, 189 (1973).
[27] http://burgafddi.mibpc.gwdg.de.
[28] McQuarri,  Donald  A. , “Statistical  Mechanics”, University Science Book, (2000).
[29] http://www.webbook. nist. gov/ chemistry/ Fluid (2005).
[30] Nezeba, I., Curr.Opin.Coll.Inter. Sci., 9, 107 (2004).

Files

Share

How to cite

Statistics