Study on the Phase Equilibrium of the Ternary System Ethanol-Cesium Carbonate-Water at 10,30 and 50℃  

作　　者：翟全国 胡满成 刘志宏 夏树屏 

机构地区：[1]School of Chemistry and Materials Science,Shaanxi Normal University [2]Xi'an Branch,Institute of Salt Lake,Chinese Academy of Sciences

出　　处：《Chinese Journal of Chemistry》2004年第1期14-18,共5页中国化学（英文版）

基　　金：the National Natural Science Foundation of China (No. 20171032).

摘　　要：The phase diagrams of the CH3CH2OH-Cs2CO3-H2O system were determined at 10, 30 and 50 ℃, respectively. It was found that the effect of the temperature on the phase equilibrium was insignificant within the investigated range. The binodal curves were given using a five-parameter equation and the tie lines were fitted using the Oth-mer-Tobias and Bancroft correlations. Correlation coefficients (R) for all equations exceeded 0.99. Samples of the solid phase at 30 ℃ were analyzed by TGA showing that it consisted of Cs2CO3·3.5H2O. The refractive index of the systems was also determined.The phase diagrams of the CH3CH2OH-Cs2CO3-H2O system were determined at 10, 30 and 50 ℃, respectively. It was found that the effect of the temperature on the phase equilibrium was insignificant within the investigated range. The binodal curves were given using a five-parameter equation and the tie lines were fitted using the Oth-mer-Tobias and Bancroft correlations. Correlation coefficients (R) for all equations exceeded 0.99. Samples of the solid phase at 30 ℃ were analyzed by TGA showing that it consisted of Cs2CO3·3.5H2O. The refractive index of the systems was also determined.

关 键 词：liquid-liquid equilibrium phase diagram Cs2CO3 binadol curve tie line 

分 类 号：O642.4[理学—物理化学]