Solid–liquid Equilibria in the Quaternary System Na+, Mg2+//Cl–, SO2–4–H2O at 25 and 30°C

被引：0
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作者：
L. Zayani
R. Rokbani
机构：
[1] Institut National de Recherche Scientifique et Technique,Laboratoire de Génie des Procédés
来源：
Journal of Thermal Analysis and Calorimetry | 2000年 / 59卷
关键词：
brine; sea water; sodium sulphate; solubility diagram; quaternary system;
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学科分类号：
摘要：
The isoplethic sections in the diagram of the quaternary system Na+ , Mg2+ //Cl– , SO2–4 –H2 O were established at 25 and 30oC by analytical and conductometric measurements. Three compounds can be observed in the isoplethic sections: NaCl, Na2 SO4 and MgNa2 (SO4 )2 4 H2 O. Seven fields are determined, relating to the precipitation of one, two or three salts. The solubility range of MgNa2 (SO4 )2 4 H2 O is wide, while the liquidus curve of Na2 SO4 is very short. The compositions, expressed in Jänecke coordinates, at the eutonic and peritonic points, respectively, were:
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页码：885 / 892
页数：7
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