Acta Chimica Sinica ›› 1991, Vol. 49 ›› Issue (8): 768-773. Previous Articles     Next Articles

Original Articles

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
  • 出版日期:1991-08-15 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   

  • Online:1991-08-15 Published:1991-08-15

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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