Thermochemistry of the decomposition of some cobalt compounds

被引：6
|
作者：
Ingier-Stocka, E [1 ]
Rycerz, L [1 ]
机构：
[1] Wroclaw Tech Univ, Inst Inorgan Chem & Met Rare Elements, PL-50370 Wroclaw, Poland
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 1999年 / 56卷 / 02期
关键词：
cobalt oxysalts; DSC; enthalpy of decomposition; enthalpy of dehydration; thermal decomposition;
D O I：
10.1023/A:1010156728374
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Differential scanning calorimetry (DSC) was used to determine the molar enthalpies of dehydration and decomposition of CoC2O4. 2H(2)O, Co(HCOO)(2). 2H(2)O and [Co(NH3)(6)](2)(C2O4)(3). 4H(2)O. The first stage of dissociation of each compound is a single-step dehydration both in air and argon atmospheres. The next stages are decomposition processes influenced by experimental parameters. The enthalpies of dehydration and decomposition vary from compound to compound in each atmosphere. The obtained data have been related to the macromechanisms proposed for the thermal decomposition and the parallel-consecutive decomposition-oxidation processes.
引用
收藏
页码：547 / 552
页数：6
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