Monosodium xenate is the sodium salt of xenic acid with formula NaHXeO4.
[2] Monosodium xenate can be made by mixing solutions of xenon trioxide and sodium hydroxide, followed by freezing to liquid nitrogen temperatures, and dehydrating in a vacuum.
[1] Monosodium xenate usually exists in the sesquihydrate form, with 1.5 waters of hydration per unit molecule.
[1] Sodium xenate is slightly toxic with a median lethal dose between 15 and 30 mg/kg of body weight in mice.
In mice, the level in blood drops by half in twenty seconds due to it being decomposed and exhaled.