Cocrystallization of Cu2+ with NH4Cl by the anomalous isomorphism mechanism

In the ammonium chloride crystallization region of the NH₄Cl−CuCl₂−H₂O−CH₃ON system, cocrystallization of the impurity with the main substance occurs by epitaxial adsorption of complexes of varying composition. In NH₄Cl crystals, the Cu²⁺ impurity forms oriented interlayers (ingrowths) simultaneously at the macro-and microlevels. The ratio between the two trapping forms depends on the growth conditions. St. Petersburg State University. Translated fromZhurnal Strukturnoi Khimii, Vol. 35, No. 5, pp. 70–78, September–October, 1994. Translated by L. Smolima