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Rb₂SO₄-C₂H₅OH-H₂O三元体系的溶解度研究

Solubility of the Rb₂SO₄-C₂H₅OH-H₂O Ternary System

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【Author】 Li Minghua 1, Gao Shiyang 1, 2 , Xia Shuping 1* , Yue Tao 1 (1. Institute of Salt Lakes, Chinese Academy of Sciences, Xi′an 710043, China; 2. School of Chemistry and Materials Science, Shaanxi Normal University, Xi′an 710062, China)

【机构】中国科学院盐湖研究所二部；中国科学院盐湖研究所二部陕西西安710043；陕西西安710043陕西师范大学化学与材料科学学院；陕西西安710062；陕西西安710043；陕西西安710043；

【摘要】采用半微量相平衡实验装置 ,研究了Rb2 SO4 C2 H5OH H2 O三元体系 0～ 60℃的等温平衡溶解度 ,发现该体系在实验研究温度范围内饱和溶液相都是不分层的乙醇水溶液。用TPD软件 (三角相图绘图软件 )绘制了相应的平衡相图 ,“Schreinmakers”湿渣结线法确定平衡固相皆为无水Rb2 SO4 ;同时给出了体系 10～ 60℃的等温溶解度方程及 3 0℃时C2 H5OH对Rb2 SO4 的盐析率曲线。更多还原

【Abstract】 The solubility of Rb 2SO 4 C 2H 5OH H 2O ternary system was studied using microequipment for determination of isothermal solubility from 0 to 60 ℃. The phase diagrams were drawn with TPD software. It is found that there is only one liquid phase for the saturated system and the equilibrium solid phase is anhydrous Rb 2SO 4. The empirical equations of isothermal solubitity are obtained and the salting out effect of ethanol on Rb 2SO 4 was discussed.更多还原