Uranyl iodide is an compound of uranium, oxygen, and iodine with the chemical formula .

Synthesis Uranyl iodide can be obtained by treating with pure ,reducing uranyl iodate with aqueous sulfur dioxide, the decomposition of uranyl sulfate with barium or calcium iodide, or adding barium iodide in excess to an ether solution of uranyl nitrate.

Chemical properties The compound reacts with water and oxygen to produce uranyl hydroxide:

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