Dichlorine hexoxide

Dichlorine hexoxide
Names
	IUPAC name Dichlorine hexoxide
	Other names Chlorine trioxide; Chloryl perchlorate; Chlorine(V,VII) oxide
Identifiers
CAS Number	12442-63-6 ;
3D model (JSmol)	Interactive image; Interactive image;
ChemSpider	9564507 incorrect charge;
PubChem CID	101946322;
	InChI InChI=1S/Cl2O6/c3-1(4)8-2(5,6)7 Key: BMVIIZAOKBSWDS-UHFFFAOYSA-N;
	SMILES O=[Cl](=O)O[Cl](=O)(=O)=O; O=[Cl+]=O.[O-]Cl(=O)(=O)=O;
Properties
Chemical formula	Cl2O6
Molar mass	166.901 g/mol
Appearance	red liquid
Density	1.65 g/cm3
Melting point	3.5 °C (38.3 °F; 276.6 K)
Boiling point	200 °C (392 °F; 473 K)
Solubility in water	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). verify (what is ?) Infobox references

Dichlorine hexoxide is the chemical compound with the molecular formula Cl₂O₆ 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.