Formula C4H6O4 Appearance Colorless crystals | Density 1.16 g/cm³ | |
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Diacetyl peroxide is the organic peroxide with the formula (CH3CO2)2. It is a white solid or oily liquid with a sharp odor. Since the pure material poses an explosion hazard, it is often used as a solution, e.g., in dimethyl phthalate as a solvent.
Contents
Preparation
Diacetyl peroxide forms upon combining hydrogen peroxide and excess acetic anhydride. Peracetic acid in an intermediate.
Safety
Generally speaking, organic peroxides are often explosive since they consist of both the oxidizer, the O-O bond, and reducing agents, the C-C and C-H bonds.
It is shock sensitive and explosive.
The threshold quantity for Process Safety Management per Occupational Safety and Health Administration 1910.119 is 5,000 lb (2,300 kg) if the concentration of the diacetyl peroxide solution is greater than 70%.
There have been reports of detonation of the pure material. The 25% solution also has explosive potential. The crystalline peroxide is especially shock sensitive and a high explosion risk.
Health hazards
Contact with liquid causes irritation of eyes and skin. If ingested, irritates mouth and stomach.