It is found to be present at one stage of the enriched uranium fuel cycle and in yellowcake prepared via the in situ leaching and resin ion exchange system.

One main characteristic of uranium peroxide is that it consists of small needles with an average AMAD of about 1.1 μm.

[1] The unit cell consists of uranyl cations coordinated to two water molecules and two peroxide anions.

[2] Only the tetrahydrate has been characterized by X-ray crystallography, but density functional theory offers a good approximation to the dihydrate.

[3] When uranyl nitrate is dissolved in an aqueous solution of hydrogen peroxide and an alkali metal hydroxide, it forms cage clusters akin to polyoxometalates or fullerenes.