Phase diagram of binary system C₁₂Zn-C₁₈Zn

Kezhong Wu, Xindong Wang, and Xiaodi LiuMetallurgy School, University of Science and Technology Beijing, Beijing 100083, ChinaDepartment of Chemistry, Hebei Normal University, Shijiazhuang 050016, China

摘 要：<正> The solid-solid phase transitions in the perovskite type layer materials （n-C12H25NH3）2ZnCl4 （C12Zn） and （n-C18H37NH3）2ZnCl4 （C18Zn） that are one kind of potential thermal storage material, were synthesized and, at the same time, a series of their mixtures C12Zn/C18Zn were prepared. The experimental binary phase diagram of C12Zn/C18Zn was established by means of differential scanning calorimetry （DSC） and X-ray diffraction. In the phase diagram a stable solid compound （n-C12H25NH3）（n-C18H37NH3）ZnCl4 （C12C18Zn） and two eutectoid invariants were observed. It is noticeable that the phase diagram contains solid solution ranges.

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