Protactinium(IV) oxideProtactinium(IV) oxide is a chemical compound with the formula PaO2. The black oxide is formed by reducing Pa2O5 with hydrogen at 1 550 °C. Protactinium(IV) oxide does not dissolve in H2SO4, HNO3, or HCl solutions, but reacts with HF. Read from the Chembox of the Wikipedia article Protactinium(IV) oxide, revision 1299258842.

Property

Value

Formula

O2Pa, 263.04 g/mol

Melting point

2927 °C

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