Rhodium(III) oxide
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Rhodium(III) oxide (or Rhodium sesquioxide) is the inorganic compound with the formula Rh2O3. It is a gray solid that is insoluble in ordinary solvents.
Quick Facts Identifiers, Properties ...
Identifiers | |
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3D model (JSmol) |
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ECHA InfoCard | 100.031.666 |
EC Number |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
Rh2O3 | |
Molar mass | 253.8092 g/mol |
Appearance | dark grey odorless powder |
Density | 8.20 g/cm3 |
Melting point | 1,100 °C (2,010 °F; 1,370 K) (decomposes) |
insoluble | |
Solubility | insoluble in aqua regia |
+104.0·10−6 cm3/mol | |
Structure[1] | |
hexagonal (corundum) | |
R3c | |
a = 512.7 pm (hexagonal setting), c = 1385.3 pm (hexagonal setting) | |
Hazards | |
GHS labelling:[2] | |
Danger | |
H302+H332, H315, H319, H335 | |
P280, P301+P330+P331, P302+P352, P304+P340, P312, P332+P313, P337+P313 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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