Reactions of dioxygen difluoride with neptunium oxides and fluorides

Autor:	Scott A. Kinkead, Larned B. Asprey, R. J. Kissane, Basil I. Swanson, P. Gary Eller
Rok vydání:	1998
Předmět:	Reaction mechanism Mechanical Engineering Neptunium Inorganic chemistry Metals and Alloys chemistry.chemical_element Reaction intermediate Hydrogen fluoride chemistry.chemical_compound Hexafluoride chemistry Mechanics of Materials Halogen Materials Chemistry Dioxygen difluoride Fluorine
Zdroj:	Journal of Alloys and Compounds. 269:63-66
ISSN:	0925-8388
Popis:	Neptunium dioxide and tetrafluoride are converted in essentially quantitative yield to volatile neptunium hexafluoride by dioxygen difluoride (O2F2), both in gas–solid reactions at ambient temperatures and in liquid anhydrous hydrogen fluoride at −78°C. Neptunium dioxydifluoride was identified by Raman spectroscopy as a dominant reaction intermediate in the neptunium dioxide reaction. Direct reaction of NpF4 with liquid O2F2 resulted in violent decomposition of O2F2 with little or no conversion to NpF6. These reaction temperatures contrast markedly with the elevated temperatures (above 200°C) required for NpF6 generation using elemental fluorine or halogen fluorides.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::715b222eab1d9b9e9829d8ac69b5da17 https://doi.org/10.1016/s0925-8388(98)00005-x Zobrazit plný text záznamu Full Text from ScienceDirect