Diacetyl peroxide
| Names | |
|---|---|
| Preferred IUPAC name
Acetic peroxyanhydride | |
| Other names
acetyl peroxide (2:1); diacetyl peroxide; Peroxide, diacetyl; ethanoyl peroxide; acetyl ethaneperoxoate; ethanoyl ethane peroxoate; peracetic acid acetyl ester
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.003.409 |
| EC Number |
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PubChem CID
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| UNII | |
| UN number | 2084 |
CompTox Dashboard (EPA)
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| Properties | |
| C4H6O4 | |
| Molar mass | 118.088 g·mol−1 |
| Appearance | Colorless crystals |
| Density | 1.163 g/cm3 |
| Melting point | 30 °C (86 °F; 303 K) |
| Boiling point | 121.4 °C (250.5 °F; 394.5 K) at 760 mmHg; 63 °C (145 °F; 336 K) at 21 mmHg |
| slight in cold water | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Explosive, oxidizer |
| NFPA 704 (fire diamond) | |
| Flash point | 32.2 °C (90.0 °F; 305.3 K) (45 °C [113 °F; 318 K]) |
| Explosive data | |
| Shock sensitivity | Very high / moderate when wet |
| Friction sensitivity | Very high / moderate when wet |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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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. As with a number of organic peroxides, it is explosive. It is often used as a solution, e.g., in dimethyl phthalate.