Reactions in the Na₂MoO₄–ZrOCl₂–ErCl₃–H₂O system at 20°C were studied by the method of residual concentrations. The insoluble substance formed in this system was investigated by physicochemical methods (XRD, IR spectroscopy, thermal analysis).

中文翻译：

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Na2MoO4-ZrOCl2-ErCl3-H2O体系中的反应研究

采用残留浓度法研究了20℃下Na ₂ MoO ₄ –ZrOCl ₂ –ErCl ₃ –H _{2 O体系中的反应。}通过物理化学方法（XRD、红外光谱、热分析）研究了该体系中形成的不溶物。