Phase diagram of the TbBr3-KBr binary system

被引：0
|
作者：
Rycerz, L
Gaune-Escard, M
机构：
[1] Ecole Polytech Mecan Energet, F-13453 Marseille 13, France
[2] Wroclaw Univ Technol, Inst Inorgan Chem & Met Rare Elements, PL-50370 Wroclaw, Poland
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES | 2004年 / 59卷 / 1-2期
关键词：
terbium(III) bromide; potassium bromide; enthalpy; phase diagram; Differential Scanning Calorimetry; eutectic; compound; formation; decomposition;
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The phase equilibrium of the TbBr3-KBr has been established by Differential Scanning Calorimetry. This system has the three compounds K3TbBr6, K2TbBr5, and KTb2Br7 and two eutectics located at (x(Tb) = 0.163 (885 K) and (x(Tb) = 0.433 (697 K). K3TbBr6 undergoes a solid-solid phase transition at 691 K and melts congruently at 983 K with the corresponding enthalpies 8.0 and 48.0 kJ mol(-1). K2TbBr5 melts incongruently at 725 K, and KTb2Br7 at 741 K. The latter forms at 694 K, a temperature very close to that (697 K) of one of the two eutectics also existing in the binary system.
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页码：84 / 90
页数：7
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