Manganese heptoxide

It is a highly reactive and powerful oxidizer that reacts explosively with nearly any organic compound.

[5] Mn2O7 arises as a dark green oil by the addition of cold concentrated H2SO4 to solid KMnO4.

The explosion can be initiated by striking the sample or by its exposure to oxidizable organic compounds.

The ozone can spontaneously ignite a piece of paper impregnated with an alcohol solution.

[citation needed] Manganese heptoxide reacts with hydrogen peroxide in presence of sulfuric acid, liberating oxygen and ozone:

Manganese(VII) oxide
Manganese(VII) oxide
Ball-and-stick model of manganese heptoxide
Ball-and-stick model of manganese heptoxide
Manganese(VII) oxide
Manganese(VII) oxide
NFPA 704 four-colored diamond Health 4: Very short exposure could cause death or major residual injury. E.g. VX gas Flammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propane Instability 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerin Special hazard OX: Oxidizer. E.g. potassium perchlorate