Thermal behaviour of RE(His)(NO3)3•H2O

被引：3
|
作者：
Ji, M
Liu, J
Gao, S [1 ]
Hu, R
Shi, Q
机构：
[1] NW Univ Xian, Dept Chem, Xian 710069, Shaanxi, Peoples R China
[2] Xian Modern Chem Res Inst, Xian 710065, Shaanxi, Peoples R China
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 1999年 / 58卷 / 02期
关键词：
L-alpha-histidine; rare earth; thermal decomposition; thermal stability;
D O I：
10.1023/A:1010194903302
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The thermal decomposition behaviour of the complexes of rare earth metals with histidine: RE(His)(NO3)(3). H2O (RE=La-Nd, Sm-Lu and Y; His=histidine) was investigated by means of TG-DTG techniques. The results indicated that the thermal decomposition processes of the complexes can be divided into three steps. The first step is the loss of crystal water molecules or part of the histidine molecules from the complexes. The second step is the formation of alkaline salts or mixtures of nitrates with alkaline salts after the histidine has been completely lost from the complexes. The third step is the formation of oxides or mixtures of oxides with alkaline salts. The results relating to the three steps indicate that the stabilities of the complexes increase from La to Lu.
引用
收藏
页码：331 / 337
页数：7
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