Rhodium(IV) oxide

Updated on Dec 27, 2024

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Formula RhO2 Density 7.2 g/cm³ Appearance black crystalline solid		Molar mass 134.904 g/mol Melting point 1,050 °C Pubchem 82936

Rhodium(IV) oxide (or rhodium dioxide) is the chemical compound with the formula RhO₂.

Chemical properties

RhO₂ is highly insoluble even in hot aqua regia.

RhO₂ has the tetragonal rutile structure.

RhO₂ has metallic resistivity with values <10⁻⁴ Ohm·cm. It transforms in air to Rh₂O₃ at 850 °C and then to metal and oxygen at 1050 °C.

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