RELATIONSHIPS BETWEEN IONIC RADII AND PITZER'S PARAMETERS IN 1:1 TYPE ELECTROLYTE SOLUTIONS
来源期刊：中国有色金属学报(英文版)1992年第4期
论文作者：Sun Weian Li Yigui Chen Xinmin
文章页码：34 - 38
Key words：Pitzer; virial parameter ; osmotic coefficient ; activity coefficient; electrolytic solution ; ionic radius
Abstract: A new expression for the osmotic and activity coefFcients in single electrolyte solution is developed by reforming the Pitzer's osmotic equation. As a result, the correlations between the aMx, the sum of the " hard core" radii of ions M+ and X-, and the second virial coefficients βMX(0) and βMX(1) in Pitzer's equations are obtained.Furthermore, an "ionic overlap" model and its relevant equation are suggested. The relationships between the thermodynamic properties of aqueous electrolytes and the characteristic of their ions (ionic radii and ionic hydration) are discussed quantitatively.
