摘要： 本文采用职称论文发表静态法测定了温度为25-70 oC时AlCl3o6H2O在Fe(III)-K-Ca-Cl-H2O体系中的溶解度。结果表明，在所测溶液浓度范围内，温度为25 、50 和70 oC时AlCl3o6H2O在Fe(III)-K-Ca-Cl-H2O体系中的溶解度随着温度的升高而增大；而在KCl-FeCl3-H2O、CaCl2-FeCl3-H2O和CaCl2-KCl-H2O体系中，固定其中一种溶液的浓度，AlCl3o6H2O的溶解度随着另一溶液浓度的增大均不断减小，这都归因于氯离子的加入产生了同离子效应从而使AlCl3o6H2O的溶解度降低。通过计算还发现，温度对AlCl3o6H2O溶解度的影响可忽略，溶液浓度才是影响AlCl3o6H2O溶解度的主要因素。
关键词： 六水合氯化铝；溶解度；静态法；同离子效应

FU Mengyuan， CHENG Wenting^*， CHENG Fangqing

（  Institute of Resources and Environment Engineering, Shanxi University, Shanxi Provincial Key Laboratory of Coal Power Plant Pollution Control and Waste Utilization, TaiYuan 030006 ；  ）

Abstract： In this study, the solubility of AlCl3o6H2O in Fe(III)-K-Ca-Cl-H2O system was investigated by equilibrium method with the temperature range of 25-70 oC. Experiment results are as follows: the solubility of AlCl3o6H2O phases in all the cases measured was found to increase slowly with the temperature going up; in the KCl-FeCl3-H2O, CaCl2-FeCl3-H2O and CaCl2-KCl-H2O systems, fixing one solution, the solubility of AlCl3o6H2O decreased with increasing concentrations of the other solution due to the common ion effect of added Cl- . By calculating the data, it was known that concentration was the main factor to affect the solubility of AlCl3o6H2O while effect of temperature on the solubility could be ignored. 
Keywords： AlCl3o6H2O; solubility; equilibrium method; common ion effect