| A Study on Thermal Decomposition of K_3[Fe(CN)_6] and KFe[Fe(CN)_6] in Helium |
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| 作者姓名： | Chen Hanwen Xin Xinquan Niu Junning and Dai Anbang |
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| 作者单位： | Chen Hanwen，Xin Xinquan，Niu Junning and Dai Anbang(A. P. Tai)，Wang Xin and Zhang Yuchang (Nanjing University，Nanjing) |
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| 摘 要： | K3 Fe(CN)6] and KFeFe(CN)6] are classical coordination compounds. However, the mechanism of decomposition reactions has not been well expounded. The gas products of thermal decomposition were examined by gas chroma tography (GC) , and the structure of the solid products by Mossbauer spectroscopy(MS) and X-ray diffraction(XRD). The findings are explained in terms of the theory of coordination chemistry and a decomposition mechanism is proposed in this study. On the basis of various experimental results, the first stage of the decomposition of K3Fe(CN)6] in He was found to be the evolution of(CN)2 resulting in the reduction of Fe(Ⅲ)12K3 Fe(CN)6]→9K4Fe(CN)6] + Fe2 Fe(CN)6] + 6 ( CN )For KFe Fe(CN) 6 ], the first stage of decomposition man be represented as6KFeFe(CN)6]→3K2FeFe(CN)6] + 2Fe2Fe(CN)6 + 3(CN)2At higher temperatures, the decomposition of both K3Fe(CN)6) andKFeFe(CN)6] to form KCN and Fe2C was accomplished by the release of(CN)2 and N2.
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A Study on Thermal Decomposition of K_3[Fe(CN)_6] and KFe[Fe(CN)_6] in Helium |
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| Chen Hanwen,Xin Xinquan,Niu Junning and Dai Anbang.A Study on Thermal Decomposition of K_3[Fe(CN)_6] and KFe[Fe(CN)_6] in Helium[J].Chemical Research in Chinese University,1988(2). |
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| Authors: | Chen Hanwen Xin Xinquan Niu Junning and Dai Anbang |
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| Abstract: | |
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| Keywords: | Thermal decomposition K_3[Fe(CN)_6] KFe[Fe(CN)_6] |
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