摘要
采用半微量相平衡方法研究了ＰｒＣｌ_３·３Ｈ_２Ｏ－１８Ｃ６－Ｃ_２Ｈ_５ＯＨ三元体系在２５℃的溶解度，测定了各饱和溶液的折光率。在该体系中有三种比学计量的配合物形成，其化学组成为：２ＰｒＣｌ_３·１８Ｃ６·６Ｈ_２Ｏ·Ｃ_２Ｈ_５ＯＨ、４ＰｒＣｌ_３·３（１８Ｃ６）·１２Ｈ_２Ｏ和ＰｒＣｌ_３·１８Ｃ６·３Ｈ_２Ｏ，依据相平衡结果，合成了三种固态配合物，利用化学分析、ＩＲ、ＴＧ、ＤＴＧ、ＤＳＣ及电导研究了配合物的组成和性质。
The solubilities of ternary system, PrCl3·3H2O-18C6 C2H5OH, at 25℃ were investigated by a semimicro method for the study of phase equilibrium and the refractive indexes of saturated solutions were determined. Three kinds of stoichiometrical coordination compounds can be formed in the system, their chemical compositions are 2PrCl3·18C6·6H2O·C2H5OH, 4PrCl3·3(18C6)·12H2O and PrCl3·18C6·3H2O. The three kinds of coordination compounds were prepared on the basis of the result of phase equilibrium, and characterized by IR spectra, conductivity measurements, TG, DTG and DSC.
出处
《高等学校化学学报》
CSCD
北大核心
1995年第10期1504-1507,共4页
Chemical Journal of Chinese Universities
关键词
配合物
溶解度
氯化镨
冠醚18C6
相平衡
Complex
Solubility
Trihydrated praseodymium chloride
Crown ether 18C6
Phase equilibrium
