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
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.