It is more powerful even than elemental fluorine due to the even lower bond energy of Kr–F compared to F–F, with a redox potential of +3.5 V for the KrF2/Kr couple, making it the most powerful known oxidising agent, though  could be even stronger:
KrF2 has an even lower bond energy than F–F and a redox potential of +3.5 V for the KrF2/Kr couple, indicating its greater oxidizing power compared to elemental fluorine; however, it might be even more potent.