The solid–liquid equilibria relationship in the two ternary systems sodium chloride–zinc chloride–water and magnesium chloride–zinc chloride–water at 298 K were investigated based on the isothermal dissolution equilibrium method, integrated with the methods of humid residue, X-ray powder crystal diffraction, and density bottle. According to the determined solubility data combined with the humid residue composition and equilibrium solid phase, the phase diagrams of the two systems were depicted. It is concluded that the two isothermal phase diagrams are categorized as a complex type due to the precipitation of double salt between the two inorganic salt components rather than solid solution. Both of them can be divided into three single solid phase crystalline regions and an unsaturated region. Three solid crystalline phase regions in the ternary system NaCl–ZnCl₂–H₂O at 298 K were saturated with NaCl, ZnCl₂, and 2NaCl·ZnCl₂·2H₂O, and those for the ternary system MgCl₂–ZnCl₂–H₂O at 298 K were deposited for MgCl₂·6H₂O, MgCl₂·ZnCl₂·5H₂O, and ZnCl₂. The densities in the equilibrated liquid phase were determined experimentally and simulated by the Laliberte model. As a result, the model can basically describe the density of two electrolytes in an aqueous solution at normal temperature.

中文翻译：

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三元体系NaCl–ZnCl ₂ –H ₂ O和MgCl ₂ –ZnCl ₂ –H ₂ O在298 K时的固液相平衡

基于等温溶出平衡法，结合湿渣法，X射线法，研究了298 K下三元体系氯化钠-氯化锌-水和氯化镁-氯化锌-水的固液平衡关系。粉末晶体衍射，并装瓶。根据确定的溶解度数据，结合湿残留物成分和平衡固相，绘制了两个系统的相图。结论是，由于两种无机盐组分之间的双盐沉淀而不是固溶体沉淀，这两个等温相图被归类为复杂类型。它们都可以分为三个单一的固相结晶区和一个不饱和区。298 K处的₂ –H ₂ O被NaCl，ZnCl ₂和2NaCl·ZnCl ₂ ·2H ₂ O饱和，三元体系MgCl ₂ –ZnCl ₂ –H ₂ O在298 K处被MgCl ₂ ·沉积。6H ₂ O，MgCl ₂ ·ZnCl ₂ ·5H ₂ O和ZnCl ₂。实验确定了平衡液相中的密度，并通过Laliberte模型进行了模拟。结果，该模型可以基本描述常温水溶液中两种电解质的密度。