Solubility of Potassium Acetate in Water,2,2,2-Trifluoroethanol,Ethanol and Their Binary Mixtures at 288.15—333.15 K  

作　　者：WU Xi YANG Shuaishuai XU Shiming ZHANG Xinjie 

机构地区：[1]Key Laboratory of Ocean Energy Utilization and Energyf Conseration of Ministry of Education,School of Energy and Power Engineering,Dalian University of Technology,Dalian 116024,P.R.China

出　　处：《Chemical Research in Chinese Universities》2020年第5期921-926,共6页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundations of China(Nos.51606024,51776029);the Project of the Key Laboratory of Ocean Energy Utilization and Energy Conservation of the Ministry of Education of China(No.LOEC-201904);the Fundamental Research Funds for the Central Universities,China[No.DUT19RC(4X)11]。

摘　　要：The potassium acetate solutions are new potential working fluids for the closed-type reverse electrodialy-sis(RED)power generation system driven by thennal energy.In this paper,the solubilities of potassium acetate in water,2,2,2-trilluoroethaiiol,ethanol and their binary mixtures were measured by using the laser dynamic method over the temperature range of 288.15 to 333.15 K under atmospheric pressure.The results indicate that the solubility of potassium acetate solution is influenced by both the solvent components and solution temperature evidently.Besides,it is found that the measured solubility data of the potassium acetate-water-2,2,2-trifluoroethanol solutions as per the laser dynamic method are sliglitly larger than that of the data obtained as per the static method.Finally,five correlation models,including the Van?t Hoff model,Modified Apelblat model,Yaws model,A/z model and Modified Apelblat-Jouyban-Acree model,were used to correlate the measured solubility data of those potassium acetate solutions,with the relative standard deviations within 0.23%to 1.58%.

关 键 词：SOLUBILITY ELECTROLYTE SOLVENT Potassium acetate 

分 类 号：O646.1[理学—物理化学]