RHENIUM (VI) OXIDE Chemical Properties

Melting point:

400°C (dec.)

Boiling point:

400°C

Density 

6.9-7.4

Flash point:

400°C

solubility 

insoluble in H2O, acid solutions, alkaline solutions

form 

Powder

color 

Violet

Water Solubility 

Insoluble in water.

Sensitive 

Moisture Sensitive

Crystal Structure

ReO3 type

crystal system

Cube

Merck 

14,8180

Space group

Pm3m

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.3743	0.3743	0.3743	90	90	90	0.0524

InChI

1S/3O.Re

InChIKey

YSZJKUDBYALHQE-UHFFFAOYSA-N

SMILES

O=[Re](=O)=O

EPA Substance Registry System

Rhenium oxide (ReO3) (1314-28-9)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37

Safety Statements 

22-26-37/39

WGK Germany 

3

TSCA 

TSCA listed

Storage Class

11 - Combustible Solids

Hazard Classifications

Eye Irrit. 2
STOT SE 3

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

RHENIUM (VI) OXIDE Usage And Synthesis

Chemical Properties

-100mesh with 99.95% purity; red cub crystal(s); green luster imparted by transmitted light; disproportionates in vacuum to Re2O7 and ReO2 [MER06] [CER91]

Uses

Rhenium(VI) oxide is involved as a catalyst for the hydrogenation of carboxylic acids and carboxamides. It is involved in the alkene epoxidation reactions.

Synthesis

Rhenium trioxide can not be prepared directly from the elements, can be produced by CO at 300 ?? reduction of dirhenium heptaoxide:

Re2O7 + CO ?? 2 ReO3 + CO2

Toxics Screening Level

The ITSL for rhenium oxide is 0.1 μg/m3 based on an annual averaging time.

RHENIUM (VI) OXIDE(1314-28-9)Related Product Information

• RHENIUM(VII) OXIDE
• Perrhenic acid
• RHENIUM(IV) OXIDE
• Nickel(II) oxide
• Diantimony trioxide
• Gadolinium oxide
• PPlatinum wire
• Titanium dioxide
• Zirconium dioxide
• Cobalt oxide
• Erbium(III) oxide
• Zinc oxide
• Lead monoxide
• DIETHYLPHOSPHINE OXIDE
• Nickel oxide
• TIN(II) OXIDE
• Barium oxide
• CHROMIUM (III) OXIDE HYDRATE