THE DEHYDRATION BEHAVIOR OF RARE-EARTH COMPLEXES OF M-NITROBENZOIC ACID

被引：2
|
作者：
WANG, ZL
NIU, CJ
MA, JF
NI, JZ
机构：
[1] Laboratory of Rare Earth Chemistry and Physics Changchum Institute of Applied Chemistry, Academy Sinica, Changchun
来源：
JOURNAL OF THERMAL ANALYSIS | 1994年 / 41卷 / 04期
关键词：
COMPLEXES; DTA-TG-DSC; IR; LUMINESCENT MATERIALS; RARE EARTH COMPLEXES OF M-NITROBENZOIC ACID; X-RAY;
D O I：
10.1007/BF02547169
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Rare earth complexes of m-nitrobenzoic acid (LnL3.2H2O, Ln = La-Lu and Y, except Pm, HL = m-nitrobenzoic acid) were synthesized and characterized by elemental analysis, chemical analysis, IR spectroscopy and X-ray diffraction analysis. The dehydration behaviour of these complexes was studied in detail by means of TG-DTA and DSC. Dehydration occurs over the temperature range 76-215-degrees-C, and the temperature of formation of the anhydrous complexes decreases with increasing atomic number of the rare earth. The activation energies and enthalpy changes for the dehydration were obtained.
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页码：899 / 907
页数：9
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