Chlorine perchlorate


Chlorine perchlorate is a chemical compound with the formula Cl2O4. This chlorine oxide is an asymmetric oxide, with one chlorine atom in +1 oxidation state and the other +7, with proper formula ClOClO3. It is produced by the photolysis of chlorine dioxide at room temperature by 436 nm ultraviolet light :
Chlorine perchlorate can also be made by the following reaction at −45 °C.

Properties

Chlorine perchlorate is a pale greenish liquid. It is less stable than ClO2 and decomposes at room temperature to give O2, Cl2 and Cl2O6 :
Chlorine perchlorate reacts with metal chlorides to form chlorine and the corresponding anhydrous perchlorate:

Reactions

Notes：