Dioxygen difluoride

Fluorperoxid

Brown gas

Gaseous

-163.5 ° C

-57 ° C

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Disauerstoffdifluorid is a chemical compound selected from the group of fluorides, more specifically, the oxygen fluorides.

Production and representation

Disauerstoffdifluorid can be obtained by the reaction of oxygen and fluorine by using an electric discharge. The first synthesis dating back to Otto Ruff of 1933.

Properties

Disauerstoffdifluorid is brown as gas, cherry red as a liquid and in the solid state orange yellow. The structure of the solid corresponding to the hydrogen peroxide.

It is unstable (decomposition from -95 ° C) and a strong oxidizing and a fluoriding agent. So it oxidizes chloride to chlorine fluoride and chlorine trifluoride, and hydrogen sulfide to sulfur hexafluoride.

Use

Disauerstoffdifluorid is used as the fluorinating agent to react neptunium, plutonium or compounds at low temperatures to hexafluorides.

Neptuniumdioxid and tetrafluoride are virtually completely by Disauerstoffdifluorid ( O2F2 ) converted to volatile Neptuniumhexafluorid. This is achieved both in gas - solid reactions at moderate temperatures and in liquid anhydrous hydrogen fluoride at -78 ° C: