高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (6): 555.

• 研究论文 •    下一篇

三元体系LaCl3-Am(Am=Gly,Glu,Ser)-H2O(25℃)的研究

陈菊香, 冉新权, 郭志箴, 陈运生   

  1. 西北大学化学系
  • 收稿日期:1988-09-21 出版日期:1990-06-24 发布日期:1990-06-24
  • 通讯作者: 冉新权
  • 基金资助:

    国家自然科学基金

A Study on Ternary System of LaCl3-Am(Am=Gly, Glu, Ser)-H2O(25℃)

Chen Juxiang, Ran Xinquan, Guo Zhizhen, Chen Yunsheng   

  1. Department of Chemistry, Northwestern University, Xi'an
  • Received:1988-09-21 Online:1990-06-24 Published:1990-06-24

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摘要： 测定了3个三元体系LaCl3-Am-H2O(Am=Gly,Glu,Ser)在25℃时的溶度和饱和溶液的折光指数。报道了三元体系中生成的三元配合物La(Gly)Cl3·2H2O(A1)、La(Gly)3Cl3·3H2O(A2)、La2(Glu)3Cl6·8H2O(C)、La(Ser)Cl3·3H2O(E)。用摩尔电导、红外光谱、X射线衍射、热分析及偏光显微镜鉴测定了各配合物的一些物理化学性质。

关键词: 氯化镧, 甘氨酸, 谷氨酸, 丝氨酸, 三元体系

Abstract: Three systems of LaCl3-Am-H2O(Am=Gly, Glu, Ser) were strudied. Solubilities and refraction indices of saturated solutions of these systems were measured at 25±0. 05℃ and corresponding equilibrium diagrams were constructed. In these systems there are 4 ternary complexes-La(Gly)Cl3·2H2O(A1), La(Gly)3Cl3 · 3H2O(A2), La2(Glu)3Cl6 · 8H2O(C), La(Ser)Cl3 · 3H2O (E). The complexes are not yet found in literatures except(A2), and they were characterized by molar conductivity, IR spectra, X-ray diffraction, Thermogravimetric and differential analysis.

Key words: Lanthanum chloride, Glycine, Glutamtc acid, Serine, Ternary system

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