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What is xenon tetroxide?

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Quick Answer

Xenon tetroxide is a noble gas compound of xenon and oxygen. Xenon is in its highest possible oxidation state of +8 in this compound.

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Xenon tetroxide is a yellow crystalline solid, and it is stable below negative 36 degrees Celsius. However, above that temperature, xenon tetroxide is prone to explosive decomposition, and it must be handled with extreme care under strict safety precautions. Oxygen is the only element that brings xenon up to its full oxidation state. The next closest element is fluorine, which brings it to +6. Xenon tetroxide dissolves in water to form perxenic acid and when dissolved in an alkali it produces perxenate salts.

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