|
KMID : 1059519930370030309
|
|
Journal of the Korean Chemical Society
1993 Volume.37 No. 3 p.309 ~ p.316
|
|
|
Solvation Number and Selective Solvation of Ions in Water-Methanol Systems
|
|
Chung Jong-Jae
Kim Hag-Sung
|
|
|
Abstract
|
|
|
|
The limiting equivalent ionic conductances of Li+, Na+, K+, Cl-, and Br- ions were obtained with TATB[Tetraphenyl Arsonium Tetraphenyl Borate] method from limiting equivalent conductances of LiCl, NaCl, KCl and KBr measured in water-methanol systems by conductometric method. With those values and viscosity of water-methanol systems, the Stokes radii of corresponding ions have been extracted. The latter values corrected by calibration method of Nightingale and supplemented by the crystallographic radii were utilized to calculate the volume of solvation-shell that surrounds ions. The reasonable solvation numbers (hH2O ＋ ho) were estimated by comparing the values obtained by the various suggested methods. The selective properties of ion solvation were also discussed.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|