Oxidizing agents krypton difluoride

Krypton difluoride is used as a powerful oxidizing agent to oxidize halogen fluorides and gold. 

Krypton difluoride is a white crystalline solid with a vapor pressure of about 40 mbar at 0°C. It is thermally unstable and decomposes slowly at room temperature. Therefore, it should be stored preferably in nickel or Monel containers held at low temperature (below — 60°C). Krypton difluoride is stronger oxidizing agent than elemental fluorine, dioxygen difluoride, or xenon hexafluoride. 

As mentioned, krypton difluoride is an exceedingly powerful oxidizing and fluorinating agent, far more potent than Xep2. Thus, it oxidizes xenon to XeF and gold to the unique Au(V) compound KrF+AuFg" ... 

Other xenon halides include the dichloride, the tetrachloride, and the dibromide, but these are not particularly stable. Solutions of xenon trioxide, called xenic acid, are excellent oxidizing agents, as is the octahedral perxenate anion, XeOg. Krypton difluoride, a few nitrogen compounds of both xenon and krypton, and radon difluoride have also been prepared but are not well-characterized. 

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