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

来源 :Chinese Journal of Chemistry | 被引量 : 0次 | 上传用户:xtopg
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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 ° C, 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 The 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 ° C were analyzed by TGA showing that it consisted of Cs2CO3 · 3.5H2O. The refractive index of the systems was also determined.
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