Investigations on the phase diagram EuCl2-EuCl3

被引：0

作者：

Oppermann, H ^{[1
]}

Hennig, C ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Anorgan Chem, D-01062 Dresden, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2000年 / 626卷 / 02期

关键词：

europium chlorides; phase diagrams (EuCl2-EuCl3); thermodynamics;

D O I：

10.1002/(SICI)1521-3749(200002)626:2<450::AID-ZAAC450>3.0.CO;2-M

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The phase diagram EuCl2-EuCl3 was determined by difference-thermoanalysis and the barogram of the system was determined by total pressure measurements of different compositions in function of temperature. By the results the phase diagram was precised. Eu5Cl11 decomposes at 565 degrees C in to EuCl2,s and Eu4Cl9,s and shows a transition at 510 degrees C. Eu4Cl9 decomposes at 603 degrees C in to EuCl2,s and Eu14Cl33,s. Eu14Cl33 decomposes at 612 degrees C peritectically in EuCl2,s and a EuCl3-rich melt. Eu14Cl33 shows two high temperature transition points at 570 degrees C and 580 degrees C. The endothermal effect of compositions near Eu13Cl33 was interpreted as an endothermal formation of this compound, The eutectikum was detected between Eu14Cl33 and EuCl3 to 60 +/- 1 Mol-% EuCl3 at 530 degrees C.

引用

页码：450 / 455

页数：6

共 17 条

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