MECHANISMS OF EXCHANGE OF ISOMORPHOUS COMPONENTS BETWEEN CRYSTAL AND SOLUTION AND MACRODEFECTIVENESS IN SECONDARY CRYSTALS

Citation
Ae. Glikin et al., MECHANISMS OF EXCHANGE OF ISOMORPHOUS COMPONENTS BETWEEN CRYSTAL AND SOLUTION AND MACRODEFECTIVENESS IN SECONDARY CRYSTALS, Journal of structural chemistry, 35(5), 1994, pp. 642-646
Citations number
9
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
ISSN journal
00224766
Volume
35
Issue
5
Year of publication
1994
Pages
642 - 646
Database
ISI
SICI code
0022-4766(1994)35:5<642:MOEOIC>2.0.ZU;2-P
Abstract
A quantitative study of an exchange of components between crystals and solutions upon isomorphous substitutions is described. The process is shown to be a topochemical reaction occurring by synchronous localize d events of growth and dissolution of surface microsections. In K(Al, Cr)(SO4)(2) . 12H(2)O alum, the crystal and the solvent are shown to e xchange both isomorphous (Al-Cr) and analogous (K, H2O) components. Me chanisms of the process and their relationship with crystal defectiven ess are discussed.