ZnCl_2-氨基酸(Leu/Try/Val/Thr)- H_2O体系的等温溶度  

Phase Equilibrium of ZnCl2- AA(Leu/Try/Val/Thr)- H_2O(25℃ ) Systems*

作　　者：高胜利[1] 郭利娟[1] 张逢星[1] 马英 

机构地区：[1]西北大学化学系,西安710069

出　　处：《物理化学学报》2001年第6期573-576,共4页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金资助项目( No.29871023)

摘　　要：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.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· 1/2H_2O(B)、 Zn(Val)Cl2· H_2O(C)、 Zn(Val)2Cl2(D)、 Zn(Thr)Cl2· H_2O(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.

关 键 词：三元体系 氯化锌 Α-氨基酸 配合物 相平衡 合成 等温溶度 

分 类 号：O642[理学—物理化学]