Nv. Platonova et al., COCRYSTALLIZATION OF CU2+ WITH NH4CL BY THE ANOMALOUS ISOMORPHISM MECHANISM, Journal of structural chemistry, 35(5), 1994, pp. 634-641
In the ammonium chloride crystallization region of the NH4Cl-CuCl2-H2O
-CH3ON system, cocrystallization of the impurity with the main substan
ce occurs by epitaxial adsorption of complexes of varying composition.
In NH4Cl crystals, the Cu2+ impurity forms oriented interlayers (ingr
owths) simultaneously at the macro- and microlevels. The ratio between
the two trapping forms depends on the growth conditions.