Real and chemical solvation energies of individual ions in solution |
| |
Authors: | V I Parfenyuk |
| |
Institution: | (1) Institute of Solution Chemistry, Russian Academy of Sciences, ul. Akademicheskaya 1, Ivanovo, 153045, Russia |
| |
Abstract: | On the basis of the proposed concept of real thermodynamic properties for individual ions in solution, the real thermodynamic properties of transport (resolvation) for various ions (sodium, potassium, chloride, bromide, and iodide) from water to mixtures of water with ethyl, n-propyl, and isopropyl alcohols, acetone, acetonitrile, dimethylsulfoxide, and dimethylformamide are determined by the method of Volta potential differences. Values of the chemical thermodynamic properties of transport of the ions under investigation are determined on the basis of previously calculated values of surface potentials of the solvents mentioned above. A comparative analysis of the values obtained is carried out, and characteristics of the solvation of ions of different sign are established as functions of their nature relative to the physicochemical and structural properties of the solvents. The satisfactory agreement of the data obtained on the basis of the total Gibbs energy of transport of the ions under investigation in the indicated solvents with literature data is the criterion of correctness for the scientific material presented in this paper. |
| |
Keywords: | ion solvation individual ions real and chemical thermodynamic properties of ions method of Volta potential differences interphase potentials surface potential |
本文献已被 SpringerLink 等数据库收录! |
|