Uranyl metaphosphate is a compound of uranium, phosphorus, and oxygen.

It is one of the phosphates of uranium with the formula [UO2(PO3)2]n. This long-chain compound is formed via the thermal decomposition of UO2(H2PO4)2·3H2O.

[1] Double salts, such as NaUO2(PO3)3 and CsUO2(PO3)3, are known.

[2] At elevated temperature, it decomposes to UP2O7, liberating oxygen.

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