物理化学学报 >> 2001, Vol. 17 >> Issue (06): 573-576.doi: 10.3866/PKU.WHXB20010621

研究简报 上一篇    

ZnCl2-氨基酸 (Leu/Try/Val/Thr)-H2O体系的等温溶度

高胜利;郭利娟;张逢星;马英   

  1. 西北大学化学系, 西安　710069
  • 收稿日期:2000-12-11 修回日期:2001-02-26 发布日期:2001-06-15
  • 通讯作者: 高胜利 E-mail:hwws@nwu.edu.cn

Phase Equilibrium of ZnCl2-AA(Leu/Try/Val/Thr)-H2O(25 ℃) Systems

Gao Sheng-Li;Guo Li-Juan;Zhang Feng-Xing;Ma Ying   

  1. Department of Chemistry, Northwest University, Xi′an　710069
  • Received:2000-12-11 Revised:2001-02-26 Published:2001-06-15
  • Contact: Gao Sheng-Li E-mail:hwws@nwu.edu.cn

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关键词: 三元体系, 氯化锌, α-氨基酸, 配合物, 相平衡, 合成

Abstract: The solubility properties of the zinc chlorideamino acids(Leu/Try/ Val/Thr) water systems at 25 ℃ in the whole concentration range have been investigated by equilibrium method, the corresponding phase diagrams and refractive index curves were constructed. The results indicate the formation of the congruently soluble compound of Zn(Leu)Cl2（A） in Leu system and the incongruently soluble compounds of Zn(Try)Cl2•1/2H2O(B)、 Zn(Val)Cl2 •H2O(C)、 Zn(Val)2Cl2(D)、 Zn(Thr)Cl2•H2O(E) and Zn(Thr)2Cl2(F) in Try/Val/Thr systems, which have not been reported in literature. According to the phase equilibrium result, six solid complexes have been prepared in water, and their compositions have been determined by chemical analysis which are consistent with the results of phase diagrams.

Key words: Ternary system, Zinc chloride, Amino acids, Complex, Phase equili brium, 　Synthesis