Topic summary

Rhenium trioxide

Rhenium trioxide
Names IUPAC name
Rhenium trioxide
Other names
Rhenia
Identifiers
3D model (JSmol)
ChemSpiderECHA InfoCard100.013.845EC Number
  • 215-228-8
UNII
  • Key: YSZJKUDBYALHQE-UHFFFAOYSA-N
  • InChI=1S/3O.Re
  • O=[Re](=O)=O
Properties ReO3Molar mass234.205 g/mol Appearance Deep red crystals Density6.92 g/cm Melting point400 °C (752 °F; 673 K) (decomposes) +16.0·10 cm/mol 1.68 Structure Cubic, cP4Pm3m, 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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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).