三元体系LaY_3-BAPHDCA-H_2O(Y=NO_3^-,Cl^-)30℃的溶度测定

Solubilities Measurement of the Ternary Systems LaY_3-BAPHDCA-H_2O(Y=NO_3^-, Cl^- ) at 30℃

测定了三元体系LaY3－BAPHDCA－H2O（Y＝NO3，Cl－）在30℃时的溶解度及饱和溶液的折光指数，绘制了相应的溶度图和饱和溶液的折光指数图．硝酸盐体系的溶度曲线和饱和溶液的折光指数曲线均由三支组成，分别与BAPHDCA、La（BAPHDCA）（NO3）3·4H2O和La（NO3）3·6H2O相对应．其中配体与硝酸盐形成了不一致溶解的新化合物，并对其进行了化学分析及组成分析、X射线粉末衍射分析、热分析和红外光谱分析．氯化物体系为一简单体系．

The solubilities and refractive indexes of saturated solutions of the ternarysystems LaY3-BAPHDCA--H2O (Y=NO3-, Cl- ) at 30℃ were studied and the correspondingequilibrium diagrams were constructed. The solubility curves and refractive index curves ofnitrate systems consist of three branches, corresponding to BAPHDCA, La (BAPHDCA)(NO3)3· 4H2O and La(NO3)3· 6H2O. The complex is incongruently soluble in water. Theeutectic compositions (%) are: La (NO3)3 25.25, BAPHDCA 0.91 and La (NO3)3, 60.15,BAPHDCA 0.45. The tenary complex was characterized by chemical analysis, elementaryanalysis, IR spectra,TG-DTG and X-ray power diffraction. The system of chloride is asimple one. The eutectic composition is LaCl3 49. 12%, BAPHDCA 0. 82%.