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UDK: 544.353.2

2013. - V. 27. - N 2(142). - P. 40-47

Anna Aleksandrovna Orlova, Andrey Mirovich Rudakov,

Simulation of osmotic coefficients of some antibiotics aqueous solutions

Equations describing the concentration dependence of osmotic and activity coefficients in aqueous solutions of electrolytes are substantiated. Empirical parameters of equations are hydration numbers and numbers association of electrolytes, as well as Debye-Huckel theory coefficients. Equations were applied for description of thermodynamic properties of aqueous solutions of electrolytes. Contribution of electrostatic interaction, hydration and association to nonideality of aqueous solutions of ampicillin and penicillin sodium salts and to excess Gibbs energy is discussed.

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References

1. Rudakov A.M., Sergievskii V.V. A Modified Robinson_Stokes Equation for Describing the Thermodynamic Properties of Aqueous Solutions of 1_1 Electrolytes // Russian Journal of Physical Chemistry A, 2008. V. 82. _ 5. P. 732_739.
2. Rudakov A.M., Sergievskii V.V. Hydration of Nonelectrolytes in Binary Aqueous Solutions // Russian Journal of Physical Chemistry A, 2010. V. 84. _ 10. P. 1712_1716.
3. Sergievskii V.V., Skorobogat_ko D. S., Rudakov A. M. Calculations of the Thermodynamic Properties of Dimethylsulfoxide_Water Solutions on the Basis of the Cluster Solvation Model // Russian Journal of Physical Chemistry A, 2010. V. 84. P. 350-354.
4. Rudakov A.M., Skorobogatko D.S., Sergievskiy V.V. Opisanie ravnovesiy zhidkost-par dlya binarnyh smesyay spirt organicheskiy rastvoritel // Kondensirovannye Sredy i Mezhfaznye Granicy, 2007. V. 9. _ 2. C. 147-151.
5. Rudakov A.M., Skorobogatko D.S., Sergievskiy V.V. Molekulyarnaya associaciya v binarnyh smesyah spirt _ alifaticheskiy uglevodorod po dannym ravnovesiya zhidkost _ par // Inzhenernaya fizika, 2007. _ 2. C. 32-35.
6. Azamat J., Ahmadian S.M.S., Sardroodi J.J., Fouladian M. Isopiestic studies of thermodynamic properties of solutions of ampicillin sodium and penicillin sodium in water at T = 298.15 K // Fluid Phase Equilibria, 2013. V. 338. P. 204_ 208.
7. 1. Rudakov A.M., Sergievskii V.V. A Modified Robinson_Stokes Equation for Describing the Thermodynamic Properties of Aqueous Solutions of 1_1 Electrolytes // Russian Journal of Physical Chemistry A, 2008. V. 82. _ 5. P. 732_739.
8. 2. Rudakov A.M., Sergievskii V.V. Hydration of Nonelectrolytes in Binary Aqueous Solutions // Russian Journal of Physical Chemistry A, 2010. V. 84. _ 10. P. 1712_1716.
9. 3. Sergievskii V.V., Skorobogat_ko D. S., Rudakov A. M. Calculations of the Thermodynamic Properties of Dimethylsulfoxide_Water Solutions on the Basis of the Cluster Solvation Model // Russian Journal of Physical Chemistry A, 2010. V. 84. P. 350-354.
10. 4. Rudakov A.M., Skorobogat'ko D.S., Sergievskiy V.V. Opisanie ravnovesiy zhidkost'-par dlya binarnykh smesey spirt organicheskiy rastvoritel' // Kondensirovannye Sredy i Mezhfaznye Granitsy, 2007. V. 9. _ 2. S. 147-151.
11. 5. Rudakov A.M., Skorobogat'ko D.S., Sergievskiy V.V. Molekulyarnaya assotsiatsiya v binarnykh smesyakh spirt _ alifaticheskiy uglevodorod po dannym ravnovesiya zhidkost' _ par // Inzhenernaya fizika, 2007. _ 2. S. 32-35.
12. 6. Azamat J., Ahmadian S.M.S., Sardroodi J.J., Fouladian M. Isopiestic studies of thermodynamic properties of solutions of ampicillin sodium and penicillin sodium in water at T = 298.15 K // Fluid Phase Equilibria, 2013. V. 338. P. 204_ 208.

Keywords

activity coefficient   ampicillin sodium salt   Aqueous solutions   osmotic coefficient   penicillin sodium salt   Simulation   Водные растворы   МОДЕЛИРОВАНИЕ   натриевая соль ампициллина   натриевая соль пенициллина