caa a22 4500 477139078 CHVBK 20180405111727.0 cr unu---uuuuu 170330e19970901xx s 000 0 eng 10.1007/BF02768261 doi (NATIONALLICENCE)springer-10.1007/BF02768261 Theoretical calculations of the ionic strength dependence of the ionic product of water based on a mean spherical approximation [Elektronische Daten] [Teresa Vilarino, Manuel de Vicente] A modified version of the restricted primitive model for electrolyte solutions based on the mean spherical approximation (MSA) is applied to estimate the ionic strength dependence of the ionic product of water in aqueous solutions containing different salts, which are commonly used as background electrolytes (NaCl, KCl, KNO3, and NaC104). The modification involves the use of permittivity of the solvent as concentration-dependent parameter and a single average effective diameter. This is a way of including effects originated from the solvent which do not exist in the primitive model. In the case of potassium nitrate and sodium perchlorate, a complete methodology to calculate the effective diameter and density dependence of the dielectric constant has been proposed and developed. Fits between calculated and experimental pKw values are possible over wide concentration ranges using a single adjustable parameter, namely, the average hard core diameter of water. Plenum Publishing Corporation, 1997 Mean spherical approximation nationallicence restricted primitive model nationallicence ionic product nationallicence water nationallicence ionic strength effect nationallicence simple saline concentrated media nationallicence concentration-dependent dielectric permittivity nationallicence single effective ionic diameter nationallicence Vilarino Teresa Departamento de Quimica Fundamental e Industrial, Facultad de Ciencias, Universidade da Coruña, Campus da Zapateira s/n, 15071-A, Coruña, Spain aut de Vicente Manuel Departamento de Quimica Fundamental e Industrial, Facultad de Ciencias, Universidade da Coruña, Campus da Zapateira s/n, 15071-A, Coruña, Spain aut Journal of Solution Chemistry Springer US 26/9(1997-09-01), 833-846 0095-9782 26:9<833 1997 26 10953 https://doi.org/10.1007/BF02768261 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02768261 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vilarino Teresa Departamento de Quimica Fundamental e Industrial, Facultad de Ciencias, Universidade da Coruña, Campus da Zapateira s/n, 15071-A, Coruña, Spain aut NATIONALLICENCE 700 1- de Vicente Manuel Departamento de Quimica Fundamental e Industrial, Facultad de Ciencias, Universidade da Coruña, Campus da Zapateira s/n, 15071-A, Coruña, Spain aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US 26/9(1997-09-01), 833-846 0095-9782 26:9<833 1997 26 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer