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化学学报
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化学学报 ›› 1991, Vol. 49 ›› Issue (8): 768-773. 上一篇    下一篇

研究论文

三元体系Ln(ClO4)3-4-ClCH2COAp-H2O(30℃)的相平衡研究(Ln=La,Sm,Er)

徐兴玲;唐宗薰;郭志箴;陈运生   

  1. 西北大学化学系
  • 发布日期:1991-08-15

Study on the ternary system of La(ClO4)3-4-ClCH2COAp-H2O at 30℃(Ln=La,Sm,Er)

XU XINGLING;TANG ZONGXUN;GUO ZHIZHEN;CHEN YUNSHENG   

  • Published:1991-08-15

PDF

469

被引次数

5 | 2

我们测定了三元体系Ln(ClO4)3-4-ClCh2COAp-H2O(Ln=La,Er)在30℃时的溶度及饱和溶液的折光指数,绘制相应的溶度图和饱和溶液的折光指数曲线图。体系的溶度曲线和折光指数曲线均由四支组成,分别与4-ClCh2COAp、Ln(4-ClCh2COAp)3·nH2O(Ln=La,n=7;Sm,8;Er,4)、Ln(4-ClCH2COAp)2(ClO4)3·nH2O(Ln-La,n=7;Sr,6;Er,4)和Ln(ClO4)3·nH2O(Ln=La,n=8;Sm,9;Er,6)相对应,两类配合物均为固液异组成化合物。

关键词: 相平衡, 水, 镧化合物, 络合物, 溶解度, 三元体系, 高氯酸盐, 铒化合物, 安替比林, 折光指数

The solubilities and the refractive indexes of saturated solns. of the title systems at 30?were studied and the corresponding equilibrium diagrams were constructed. All the solubility curves and refractive index curves of these systems are consisting of four branches, corresponding to 4-ClCH2COAp, Ln(4-ClCH2COAp)3(ClO4)3譶H2O(Ln = La, n = 7; Sm, 8; Er, 4), Ln(4-ClCH2COAp)2(ClO4)3譶H2O(Ln = La, n = 7; Sm, 6; Er, 4), and Ln(ClO4)3譶H2O(Ln = La, n = 8; Sm, 9; Er, 6) resp. Both kinds of complexes are incongruently soluble in water.

Key words: PHASE EQUILIBRIUM, WATER, LANTHANUM COMPOUNDS, COMPLEX COMPOUNDS, SOLUBILITY, TERNARY SYSTEM, PERCHLORATE, ERBIUM COMPOUNDS, ANTIPYRINU, REFRACTIVE INDEX

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