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Topic summary

Dichlorine hexoxide

Dichlorine hexoxide
Names IUPAC name
Dichlorine hexoxide
Other names
Chlorine trioxide; Chloryl perchlorate; Chlorine(V,VII) oxide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/Cl2O6/c3-1(4)8-2(5,6)7
    Key: BMVIIZAOKBSWDS-UHFFFAOYSA-N
  • O=[Cl](=O)O[Cl](=O)(=O)=O
  • O=[Cl+]=O.[O-]Cl(=O)(=O)=O
Properties Cl2O6Molar mass166.901 g/mol Appearance red liquid Density1.65 g/cm Melting point3.5 °C (38.3 °F; 276.6 K) Boiling point200 °C (392 °F; 473 K) Reacts Hazards Occupational safety and health (OHS/OSH):
Main hazards
oxidizer
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Dichlorine hexoxide is the chemical compound with the molecular formulaCl2O6 or O2Cl−O−ClO3, which is correct for its gaseous state. However, in liquid or solid form, this chlorine oxide ionizes into the dark red ionic compound chloryl perchlorate or dioxochloronium(V) perchlorate [ClO2][ClO4], which may be thought of as the mixed anhydride of chloric and perchloric acids. This compound is a notable perchlorating agent.

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