Thermal and structure analysis of FeSO4·H2O-BaO2 mixtures

被引：0
|
作者：
V. Petkova
Y. Pelovski
机构：
[1] Bulgarian Academy of Sciences,Central Laboratory of Mineralogy and Crystallography
[2] University of Chemical Technology and Metallurgy,undefined
来源：
Journal of Thermal Analysis and Calorimetry | 2003年 / 72卷 / 3期
关键词：
oxygen measurements; barium peroxide; isothermal decomposition; iron(II)-sulphate;
D O I：
10.1023/A:1025042920887
中图分类号：
学科分类号：
摘要：
Investigations on the thermal decomposition of FeSO4·H2O-BaO2 mixtures were carried out under isothermal conditions by using simultaneously solid electrolyte cell (EMF-method). Evoked interactions producing oxygen in the temperature range 553-673 K were established by means of a solid electrolyte oxygen analyzer. Based on Mössbauer spectroscopy data and X-ray analysis it was proved that these reactions were associated with the release of oxygen from barium peroxide, oxidation of ferrosulphate-monohydrate to FeOHSO4, and formation of barium ferrites such as BaFe2O4 and BaFe12O19.
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页码：981 / 989
页数：8
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