Rhodium(IV) oxide explained
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.[1]
Structure
RhO2 has the tetragonal rutile structure.[2]
Physical properties
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.[2]
See also
Notes and References
- O. Muller and R. Roy. Formation and stability of the platinum and rhodium oxides at high oxygen pressures and the structures of Pt3O4, β-PtO2 and RhO2. 10.1016/0022-5088(68)90070-2 . Journal of the Less Common Metals . 16. 1968. 2. 129–146.
- R. D. Shannon. Synthesis and properties of two new members of the rutile family RhO2 and PtO2. 10.1016/0038-1098(68)90019-7 . Solid State Communications . 6. 1968. 3. 139–143. 1968SSCom...6..139S.
