Experimental Study on Solid and Liquid Equilibrium of the System MgCl2鈥揗gBr2鈥揗gSO4鈥揌2O at 323.15 K

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• 作者：Lingzong Meng ; Dan Li ; Yafei Guo ; Tianlong Deng ; Jingjing Ming
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2013
• 出版时间：December 12, 2013
• 年：2013
• 卷：58
• 期：12
• 页码：3499-3503
• 全文大小：254K
• 年卷期：v.58,no.12(December 12, 2013)
• ISSN：1520-5134

文摘

The solubility and the refractive index data of the system MgCl₂鈥揗gBr₂鈥揗gSO₄鈥?H2O was found in the system.H₂O at 323.15 K were determined using the isothermal dissolution method in this study. The dry-salt phase diagram, water-phase diagrams, and refractive index versus composition of the solution diagrams were plotted. The system belongs to the solid solution type. The dry-salt diagram consists of three univariant solubility curves and four crystallization zones (MgSO₄路6H₂O, Hex; MgSO₄路4H₂O, Tet; MgSO₄路H₂O, Kie; Mg(Cl,Br)₂路6H₂O, Mcb). Solid solution Mg(Cl,Br)₂路6H₂O was found in the system. J(H₂O) increases with the increase of J(MgCl₂), while the refractive indices of the equilibrium solution decrease with the increase of J(MgCl₂). The calculated refractive index data agree well with the experimental results.