Phase equilibria in the CeI3–CsI binary system

被引：0
作者：
A. Dańczak
L. Rycerz
机构：
[1] Wrocław University of Science and Technology,Division of Analytical Chemistry and Analytical Metallurgy, Faculty of Chemistry
来源：
Journal of Thermal Analysis and Calorimetry | 2019年 / 137卷
关键词：
Phase diagram; Cerium(III) iodide; Cesium iodide; DSC;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The phase equilibria in the cerium(III) iodide–cesium iodide pseudobinary system were established by differential scanning calorimetry. The system is characterized by existence of three compounds: Cs3CeI6, Cs3Ce2I9 and CsCe2I7. First one, namely Cs3CeI6, melts congruently at 823 K and undergoes two phase transitions at 658 and 762 K. Second compound, Cs3CeI6, decomposes in the solid state at 610 K. The last existing compound, CsCe2I7, melts incongruently at 826 K. The eutectics composition was found from Tammann plot, which predicts, through application of the lever rule, the variation of the enthalpy associated with eutectic melting as a function of composition. The composition of CsI–Cs3CeI6 and Cs3CeI6–CsCe2I7 eutectics corresponds to cerium(III) iodide mole fraction x = 0.127 (T = 823 K) and x = 0.485 (T = 737 K), respectively.
引用
收藏
页码：2115 / 2120
页数：5
相关论文
共 40 条
[1]  
Hilpert K(1989)Complexiaton in metal halide vapors—a review J Electrochem Soc 136 2099-165
[2]  
Dinsdale A(2013)Thermodynamic data for the (NaI–CeI J Light Vis Environ 37 156-52
[3]  
Davies RH(1972)) and (CsI–CeI Z Anorg Allg Chem 388 43-145
[4]  
Mucklejohn SA(1974)) systems in the condensed and gas phases Z Anorg Allg Chem 408 135-98
[5]  
Vogel Von G(1979)Untersuchung der Zustandsdagramme von Lanthanidenbromiden in Gemisch mit Alkalibromiden Z Anorg Allg Chem 454 90-826
[6]  
Von Kutscher J(2002)Zur Systematik der Zustandsdiagramme von Lanthaniden(III)-halogenid-Alkalihalogenid-Systemen J Therm Anal Calorim 67 789-505
[7]  
Schneider A(2006)Zur Thermochemie von Alkalichlorid-Lanthanoid(III)-chloriden J Therm Anal Calorim 83 479-1596
[8]  
Blachnik R(2018)Ternary chlorides of the trivalent early lanthanides:phase diagrams, crystal structures and thermodynamic properties J Therm Anal Calorim 133 1589-33
[9]  
Selle D(2017)Ternary chlorides of the trivalent late lanthanides: phase diagrams, crystal structures and thermodynamic properties J Therm Anal Calorim 130 25-305
[10]  
Seifert HJ(2016)Thermodynamic properties of the NdBr J Therm Anal Calorim 126 299-16
1234