Rhenium trioxide
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Rhenium trioxide or rhenium(VI) oxide is an inorganic compound with the formula ReO3. It is a red solid with a metallic lustre that resembles copper in appearance. It is the only stable trioxide of the Group 7 elements (Mn, Tc, Re).
Quick Facts Names, Identifiers ...
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Names | |||
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IUPAC name
Rhenium trioxide | |||
Other names
Rhenia | |||
Identifiers | |||
3D model (JSmol) |
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ECHA InfoCard | 100.013.845 | ||
EC Number |
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PubChem CID |
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UNII | |||
CompTox Dashboard (EPA) |
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Properties | |||
ReO3 | |||
Molar mass | 234.205 g/mol | ||
Appearance | Deep red crystals | ||
Density | 6.92 g/cm3 | ||
Melting point | 400 °C (752 °F; 673 K) (decomposes) | ||
+16.0·10−6 cm3/mol | |||
Refractive index (nD) |
1.68 | ||
Structure | |||
Cubic, cP4 | |||
Pm3m, No. 221 | |||
a = 374.8 pm | |||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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