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Citation: Gao Sheng-Li, Guo Li-Juan, Zhang Feng-Xing, Ma Ying. Phase Equilibrium of ZnCl₂-AA(Leu/Try/Val/Thr)-H₂O(25 ℃) Systems[J]. Acta Physico-Chimica Sinica, ;2001, 17(06): 573-576. doi: 10.3866/PKU.WHXB20010621 shu

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

1.
Department of Chemistry, Northwest University, Xi′an　710069

Received Date: 11 December 2000
Available Online: 15 June 2001

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.
- Ternary system;Zinc chloride;Amino acids;Complex;Phase equili brium;　Synthesis
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Phase Equilibrium of ZnCl₂-AA(Leu/Try/Val/Thr)-H₂O(25 ℃) Systems