期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 83, 期 2, 页码 457-462出版社
SPRINGER
DOI: 10.1007/s10973-005-7267-6
关键词
DTA/TG; dehydration; FeSO4 center dot 6H(2)O; mass spectrometry
The thermal decomposition of FeSO4 center dot 6H(2)O was studied by mass spectroscopy coupled with DTA/TG thermal analysis under inert atmosphere. On the ground of TG measurements, the mechanism of decomposition of FeSO4 center dot 6H(2)O is: i) three dehydration steps FeSO4 center dot 6H(2)O (70-100 degrees C) under right arrow FeSO4 center dot 4H(2)O+2H(2)O FeSO4 center dot H2O (95-190 degrees C) under right arrow FeSO4 center dot+H2O+3H(2)O FeSO4 center dot H2O (245-310 degrees C) under right arrow FeSO4+H2O ii) two decomposition steps 6FeSO(4) (525-650 degrees C) under right arrow Fe-2(SO4)(3)+2Fe(2)O(3)+2SO(2) Fe-2(SO4)(3) (625-710 degrees C) under right arrow Fe2O3+3SO(2)+3/2O(2) The intermediate compound was identified as Fe-2(SO4)(3) and the final product as the hematite Fe2O3.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据