Thermal decomposition of potassium salts of cyano-halogeno complexes of mercury(II) |
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| Authors: | B Mohai É Cs Porzsolt M T Beck |
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| Institution: | 1. Department of General and Inorganic Chemistry, Industrial Chemistry University, Veszprém
2. Department of Physical Chemistry, Kossuth Lajos University, Debrecen, Hungary
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| Abstract: | The thermal decompositions of Hg(CN)2, K2Hg(CN)4, KHg(CN)2Cl · H2O KHg(CN)2Br and KHg(CN)2I were studied. The results showed that each of the studied complexes decomposes at a lower temperature than Hg(CN)2 itself. The halogen-containing complexes decompose in two ways. In KHg(CN)2Cl · H2O the Hg-CN bond is first broken, and then Hg2Cl2, (CN)2 and KCN are formed. The first step in the decomposition of KHg(CN)2Br and KHg(CN)2I, on the other hand, is the decomposition to Hg(CN)2 and KBr or KI. |
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