Rhodium(IV) oxide

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Rhodium(IV) oxide
Rhodium(IV) oxide
Identifiers
12137-27-8 N
ChemSpider 15017693 YesY
EC Number 235-237-0
Jmol 3D model Interactive image
PubChem 82936
  • InChI=1S/2O.Rh/q2*-2;+4 YesY
    Key: ZLDSZHMBHVKLCB-UHFFFAOYSA-N YesY
  • InChI=1/2O.Rh/q2*-2;+4
    Key: ZLDSZHMBHVKLCB-UHFFFAOYAD
  • [Rh+4].[O-2].[O-2]
Properties
RhO2
Molar mass 134.904 g/mol
Appearance black crystalline solid
Density 7.2 g/cm3
Melting point 1,050 °C (1,920 °F; 1,320 K) (decomposes)
Solubility insoluble in aqua regia
Structure
tetragonal (rutile)
Vapor pressure {{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
Infobox references

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

Chemical properties

RhO2 is highly insoluble[clarification needed] 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 RhO3 at 850 °C and then to metal and oxygen at 1050 °C.[2]

See also

References

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  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
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