Phase equilibria in ternary systems PbCl2-ZnCl2-H2O and CaCl2-PbCl2-H2O at 373 K

ZHANG Xueping; CUI Ruizhi; LIU Qian; SANG Shihua

doi:10.11949/j.issn.0438-1157.20160932

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Phase equilibria in ternary systems PbCl₂-ZnCl₂-H₂O and CaCl₂-PbCl₂-H₂O at 373 K

更新时间：2025-12-10

- Phase equilibria in ternary systems PbCl₂-ZnCl₂-H₂O and CaCl₂-PbCl₂-H₂O at 373 K
- CIESC Journal Issue 11, Pages: 4552-4557(2016)
- 作者机构：
  
  1. 成都理工大学材料与化学化工学院,四川,成都,610059
  2. 矿产资源化学四川省高校重点实验室,四川,成都,610059
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160932
  CLC： 642
- Online First：05 November 2016，
  
  Published：05 November 2016
- 稿件说明：
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ZHANG Xueping, CUI Ruizhi, LIU Qian, et al. Phase equilibria in ternary systems PbCl₂-ZnCl₂-H₂O and CaCl₂-PbCl₂-H₂O at 373 K[J]. CIESC Journal, 2016, (11): 4552-4557. DOI: 10.11949/j.issn.0438-1157.20160932.
DOI：

ZHANG Xueping, CUI Ruizhi, LIU Qian, et al. Phase equilibria in ternary systems PbCl₂-ZnCl₂-H₂O and CaCl₂-PbCl₂-H₂O at 373 K[J]. CIESC Journal, 2016, (11): 4552-4557. DOI: 10.11949/j.issn.0438-1157.20160932. DOI：

摘要

采用等温溶解平衡法研究了两个三元体系PbCl2-ZnCl2-H2O和CaCl2-PbCl2-H2O在373 K时的相平衡，测定了平衡溶液的溶解度和密度，并根据溶解度数据和对应的平衡固相绘制了相图和密度-组成图，根据相图对单变量曲线和结晶区进行了讨论。研究发现，两个三元体系均为简单共饱和型，均无复盐和固溶体生成，有一个共饱点，两条单变量曲线，两个结晶区。平衡液相对应的固相由XRD确定，并对实验结果进行了简要的讨论。

Abstract

In this work

the solubilities of the salt minerals and the densities of solution in two ternary systems of lead chloride-zinc chloride-water and calcium chloride-lead chloride-water were measured at 373 K by using an isothermal solution saturation method. Based on the determined equilibrium solubility data and the corresponding equilibrium solid phase

the phase diagrams and density diagrams of the two systems were plotted. According to the phase diagrams

univariant solubility curves and solid crystalline areas were discussed. The results showed that the two ternary systems were simple without any double salt or solid solution. The phase diagrams of two ternary systems were constituted of one invariant point

two univariant solubility curves and two solid crystalline phase regions. The solid phase was determined by the XRD. And the results of the experiment were simply discussed.

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