Dichlorine heptoxide

Dichlorine heptoxide

Names
IUPAC name Dichlorine heptoxide
Other names Chlorine(VII) oxide Perchloric anhydride (Perchloryloxy)chlorane trioxide
Identifiers
Jmol-3D images	Image
SMILES O=Cl(=O)(=O)OCl(=O)(=O)=O
Properties
Chemical formula	Cl2O7
Molar mass	182.901 g/mol
Appearance	Colorless liquid
Density	1.9 g/cm3
Melting point	−91.57 °C (−132.83 °F; 181.58 K)
Boiling point	82 °C (180 °F; 355 K)
Solubility in water	Hydrolyzes to form perchloric acid
Hazards
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Dichlorine heptoxide is a clear, oily liquid. It is a strong oxidizing agent.

Properties

Chemical

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Physical

Dichlorine heptoxide is a clear, oily, very volatile liquid.

Availability

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Preparation

This preparation is extremely dangerous because of the explosive and very oxidizing nature of Cl₂O₇.

Dichlorine heptoxide can be obtained by reacting perchloric acid with phosphorus pentoxide.
12 HClO₄ + P₄O₁₀ → 4 H₃PO₄ + 6 Cl₂O₇

The reaction has to be performed under 0°C, optimally between -70°C to -10°C. The resulting product has to be distilled very carefully under vacuum to obtain pure dichlorine heptoxide.

Projects

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Handling

Safety

To do. Dichlorine heptoxide is explosive and a strong oxidizer.

Disposal

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