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Phase Equilibria of Quaternary Systems Containing the Chlorides of Ammonium, Strontium(Magnesium), and Aluminum at 298.2 K
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2022-08-30 , DOI: 10.1021/acs.jced.2c00362 Siying Ren 1 , Qiufeng Zheng 1 , Xudong Yu 1 , Jun Luo 1 , Bo Yang 1
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2022-08-30 , DOI: 10.1021/acs.jced.2c00362 Siying Ren 1 , Qiufeng Zheng 1 , Xudong Yu 1 , Jun Luo 1 , Bo Yang 1
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The phase equilibria of the quaternary systems NH4Cl–SrCl2–AlCl3–H2O and NH4Cl–MgCl2–AlCl3–H2O at 298.2 K were investigated by using the isothermal dissolution method. The solubility, density, and refractive index of the systems were measured experimentally, and the related phase diagrams, density/refractive index versus composition diagrams, are plotted. There is one quaternary invariant point and three crystallization regions corresponding to single salts NH4Cl, AlCl3·6H2O, and SrCl2·6H2O in the phase diagram of the system NH4Cl–SrCl2–AlCl3–H2O at 298.2 K, which belongs to a simple system. In addition to the single salts NH4Cl, AlCl3·6H2O, and MgCl2·6H2O, the double salt NH4Cl·MgCl2·6H2O is formed in the quaternary system NH4Cl–MgCl2–AlCl3–H2O at 298.2 K, which indicates that the addition of magnesium makes the interaction relationship between Al3+, NH4+, and Mg2+ more complex and increases the difficulty of separation of magnesium. The crystallization region of NH4Cl is the largest in both the systems, which indicates that NH4Cl is much easier to separate than the other salts from the two systems.
中文翻译：
298.2 K 时含有铵、锶（镁）和铝的氯化物的四元体系的相平衡
采用等温溶解法研究了四元体系NH 4 Cl-SrCl 2 -AlCl 3 -H 2 O和NH 4 Cl-MgCl 2 -AlCl 3 -H 2 O在298.2 K下的相平衡。通过实验测量了系统的溶解度、密度和折射率，并绘制了相关的相图、密度/折射率与组成图。单盐NH 4 Cl、AlCl 3 ·6H 2 O、SrCl 2 ·6H 2有一个四元不变点和三个结晶区NH 4 Cl-SrCl 2 -AlCl 3 -H 2 O体系相图中的O在298.2 K，属于简单体系。除单盐NH 4 Cl、AlCl 3 ·6H 2 O和MgCl 2 ·6H 2 O外，在四元体系NH 4 Cl-MgCl 2中形成复盐NH 4 Cl·MgCl 2 ·6H 2 O –AlCl 3 –H 2 O 在 298.2 K，说明镁的加入使 Al 3+、NH 4 +，而Mg 2+更复杂，增加了镁的分离难度。NH 4 Cl的结晶区在两个体系中都是最大的，这表明NH 4 Cl比两个体系中的其他盐更容易分离。
更新日期：2022-08-30
中文翻译：
298.2 K 时含有铵、锶（镁）和铝的氯化物的四元体系的相平衡
采用等温溶解法研究了四元体系NH 4 Cl-SrCl 2 -AlCl 3 -H 2 O和NH 4 Cl-MgCl 2 -AlCl 3 -H 2 O在298.2 K下的相平衡。通过实验测量了系统的溶解度、密度和折射率，并绘制了相关的相图、密度/折射率与组成图。单盐NH 4 Cl、AlCl 3 ·6H 2 O、SrCl 2 ·6H 2有一个四元不变点和三个结晶区NH 4 Cl-SrCl 2 -AlCl 3 -H 2 O体系相图中的O在298.2 K，属于简单体系。除单盐NH 4 Cl、AlCl 3 ·6H 2 O和MgCl 2 ·6H 2 O外，在四元体系NH 4 Cl-MgCl 2中形成复盐NH 4 Cl·MgCl 2 ·6H 2 O –AlCl 3 –H 2 O 在 298.2 K，说明镁的加入使 Al 3+、NH 4 +，而Mg 2+更复杂，增加了镁的分离难度。NH 4 Cl的结晶区在两个体系中都是最大的，这表明NH 4 Cl比两个体系中的其他盐更容易分离。
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