Non-equivalent water molecules in [Ni(H2O)6](ClO4)2 and in [Ni(D2O)6](ClO4)2 in the thermogravimetric investigations

被引：0
|
作者：
Malgorzata Rachwalska
Dorota Majda
机构：
[1] Jagiellonian University,Department of Chemistry
[2] Jagiellonian University,Regional Laboratory of Physicochemical Analysis and Structural Research
来源：
Journal of Thermal Analysis and Calorimetry | 2007年 / 89卷
关键词：
DTA; hexaaquanickel(II) perchlorates; QMS; TG; thermal decomposition;
D O I：
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学科分类号：
摘要：
The thermal decomposition of [Ni(H2O)6](ClO4)2 and [Ni(D2O)6](ClO4)2 were studied by thermogravimetric analysis (TG) and simultaneous differential thermal analysis (SDTA) at a constant heating rate. The gaseous products of the decomposition were on-line identified by a quadrupole mass spectrometer (QMS). In both cases the process of decomposition starts at ca. 410 K and is connected with removal of water molecules in a stepwise way; at the beginning the first water molecule is lost, then the second and at higher temperature the third one. The rest of the water molecules are lost in the temperature region of ClO4− decomposition.
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页码：277 / 281
页数：4
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