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The Decomposition Products of Sulfur Hexafluoride (SF6) with Metals Dissolved in Liquid Ammonia

Fachbereich Chemie, Philipps-Universität Marburg, 35043 Marburg, Germany
Author to whom correspondence should be addressed.
Inorganics 2017, 5(4), 68;
Received: 25 September 2017 / Revised: 10 October 2017 / Accepted: 11 October 2017 / Published: 13 October 2017
(This article belongs to the Special Issue Metal Fluorides)
Sulfur hexafluoride is a highly chemically inert gas with several important industrial applications. It is stable against fused alkali, oxygen and ammonia, even at several hundred degrees Celsius. In this work, the reactions between metals (Li–Cs, Sr, Ba, Eu, Yb) dissolved in liquid ammonia and SF6 are reported, leading to mono- or bivalent fluorides and sulfides. To this end, SF6 was passed into a cooled solution of the respective metal in liquid ammonia. The identity of the products was confirmed by powder X-ray diffraction and IR spectroscopy. The reactions could lead to a cheap and effective disposal method of the present amounts of stored SF6, for possible generation of H2S and HF. View Full-Text
Keywords: sulfur hexafluoride; metal; ammonia sulfur hexafluoride; metal; ammonia
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Deubner, H.L.; Kraus, F. The Decomposition Products of Sulfur Hexafluoride (SF6) with Metals Dissolved in Liquid Ammonia. Inorganics 2017, 5, 68.

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