Thermal decomposition of nickel nitrate hexahydrate, Ni(NO3)2.6H2O in comparison to Co(NO3)2.6H2O and Ca(NO3)2.4H2O

被引：314

作者：

Brockner, Wolfgang ^{[1
]}

Ehrhardt, Claus ^{[1
]}

Gjikaj, Mimoza ^{[1
]}

机构：

[1] Tech Univ Clausthal, Inst Inorgan & Analyt Chem, D-38678 Clausthal Zellerfeld, Germany

来源：

THERMOCHIMICA ACTA | 2007年 / 456卷 / 01期

关键词：

Ni(NO3)(2)(.)6H(2)O; Ca(NO3)(2)(.)4H(2)O; NO2/NO2[Ni(NO3)(3); thermochemistry;

D O I：

10.1016/j.tca.2007.01.031

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal decomposition of Ni(NO3)(2).6H(2)O (1), Ca(NO3)(2).4H(2)O (2) and nitryl/nitrosyl nitrato nickelate(II), NO2/NO[Ni(NO3)(3)] (3), was investigated by thermogravimetric measurements with quasi-isothermal conditions and compared to Co(NO3)(2).6H(2)O. Therespective decomposition processes of 1 and 2 differ from each other showing that at one hand anhydrous Ca(NO3)(2) was obtained whereas anhydrous nickel dinitrate has not be formed due to redox and condensation reactions. Instead basic nickel compounds have been formed. In reducing atmosphere nickel metal can be obtained. Anhydrous Ni(NO3)(2) results by the thermal degradation of nitryl/nitrosyl nitrato nickelate. FF-Raman spectra have been of help in the judgement of the decomposition processes. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：64 / 68

页数：5

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