Diacetyl peroxide
Encyclopedia
Diacetyl peroxide as a commercial product is a colourless liquid with a pungent odour. As a solid it is crystalline (sand like) with a sharp odor.
The commercial product consists of a 25% solution of acetyl peroxide in dimethyl phthalate
. It is an organic peroxide and a carboxylic peracid derivative. It sinks in water.
Organic compounds can ignite on contact with concentrated peroxides.
Strongly reduced material such as sulfides, nitrides, and hydrides may react explosively with peroxides.
There are few chemical classes that do not at least produce heat when mixed with peroxides. Many produce explosions or generate gases (toxic and nontoxic). Generally, dilute solutions of peroxides (<70%) are safe, but the presence of a catalyst (often a transition metal such as cobalt, iron, manganese, nickel, or vanadium) as an impurity may even then cause rapid decomposition, a buildup of heat, and even an explosion. Solutions of peroxides often become explosive when evaporated to dryness or near-dryness. Pure(100%)material is a severe explosion hazard. It should not be stored after preparation, nor heated above 30 C.
There have been reports of detonation of the pure material. The 25% solution also has explosive potential when inadvertent partial evaporation of a weak solution can create an explosive solution or a shock-sensitive crystalline material.
It is essential to prevent the separation of the crystalline peroxide even in traces, since when dry, it is shock sensitive and is a high explosion risk.
Application of fluorine to aqueous sodium acetate
solution caused an explosion involving the formation of diacetyl peroxide.
Dry acetyl peroxide is unpredictable. Five grains of it were removed from an ice chest and detonated violently. Solid acetyl peroxide in contact with ether or any volatile solvent may explode violently.
The threshold quantity for Process Safety Management
per Occupational Safety and Health Administration
1910.119 is 5,000 lbs if the concentration of the diacetyl peroxide solution is greater than 70%.
The commercial product consists of a 25% solution of acetyl peroxide in dimethyl phthalate
Dimethyl phthalate
Dimethyl phthalate is a phthalate with molecular formula 2. It is the methyl ester of phthalic acid.Dimethyl phthalate is an ectoparasiticide and has many other uses, including in solid rocket propellants, plastics, and insect repellents....
. It is an organic peroxide and a carboxylic peracid derivative. It sinks in water.
Reactivity
Peroxides, such as diacetyl peroxide, are good oxidizing agents.Organic compounds can ignite on contact with concentrated peroxides.
Strongly reduced material such as sulfides, nitrides, and hydrides may react explosively with peroxides.
There are few chemical classes that do not at least produce heat when mixed with peroxides. Many produce explosions or generate gases (toxic and nontoxic). Generally, dilute solutions of peroxides (<70%) are safe, but the presence of a catalyst (often a transition metal such as cobalt, iron, manganese, nickel, or vanadium) as an impurity may even then cause rapid decomposition, a buildup of heat, and even an explosion. Solutions of peroxides often become explosive when evaporated to dryness or near-dryness. Pure(100%)material is a severe explosion hazard. It should not be stored after preparation, nor heated above 30 C.
There have been reports of detonation of the pure material. The 25% solution also has explosive potential when inadvertent partial evaporation of a weak solution can create an explosive solution or a shock-sensitive crystalline material.
It is essential to prevent the separation of the crystalline peroxide even in traces, since when dry, it is shock sensitive and is a high explosion risk.
Application of fluorine to aqueous sodium acetate
Sodium acetate
Sodium acetate, CH3COONa, also abbreviated NaOAc, also sodium ethanoate, is the sodium salt of acetic acid. This colourless salt has a wide range of uses.-Industrial:...
solution caused an explosion involving the formation of diacetyl peroxide.
Dry acetyl peroxide is unpredictable. Five grains of it were removed from an ice chest and detonated violently. Solid acetyl peroxide in contact with ether or any volatile solvent may explode violently.
Health hazards
Contact with liquid causes irritation of eyes and skin. If ingested, irritates mouth and stomach.Fire hazards
Behavior in Fire: May explode. Burns with accelerating intensity.The threshold quantity for Process Safety Management
Process Safety Management
Process Safety Management is a regulation, promulgated by the U.S. Occupational Safety and Health Administration . A process is any activity or combination of activities including any use, storage, manufacturing, handling or the on-site movement of Highly Hazardous Chemicals as defined by OSHA...
per Occupational Safety and Health Administration
Occupational Safety and Health Administration
The United States Occupational Safety and Health Administration is an agency of the United States Department of Labor. It was created by Congress of the United States under the Occupational Safety and Health Act, signed by President Richard M. Nixon, on December 29, 1970...
1910.119 is 5,000 lbs if the concentration of the diacetyl peroxide solution is greater than 70%.