Аннотация
Interactions in the ZnBr 2 -CO(NH 2 ) 2 -HBr-H 2 O quaternary system at 25°C were studied using the solubility method. The crystallization regions of the initial eutonic compositions, constituent ternary systems, binary compounds of carbamide with zinc bromide and hydrobromic acid, and two new coordination compounds ZnBr 2 · 4CO(NH 2 ) 2 · HBr and ZnBr 2 · 2CO(NH 2 ) 2 · HBr were identified.