|Preferred IUPAC name
Acetonyl chloride, chloropropanone, 1-chloro-2-propanone, monochloroacetone, 1-chloro-2-ketopropane, 1-chloro-2-oxypropane
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||92.52 g·mol−1|
|Appearance||Colorless liquid, oxidizes to amber|
|Melting point||−44.5 °C (−48.1 °F; 228.7 K)|
|Boiling point||119 °C (246 °F; 392 K)|
|10 g/100 mL at 20 °C|
|Solubility||miscible with alcohol, ether, chloroform|
|Vapor pressure||1.5 kPa|
|Flash point||35 °C (95 °F; 308 K)|
|610 °C (1,130 °F; 883 K)|
|Explosive limits||3.4% - ?|
|Lethal dose or concentration (LD, LC):|
LD50 (median dose)
|100 mg/kg (rats, oral)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Chloroacetone is a chemical compound with the formula CH3COCH2Cl. At STP it is a colourless liquid with a pungent odour. On exposure to light, it turns to a dark yellow-amber colour. It was used as a tear gas in World War I.
Chloroacetone purchased from commercial suppliers contains 5% impurities including mesityl oxide, which is not removed by distillation. Mesityl oxide can be oxidized using acidified KMnO4 to form a diol (followed by separation with ether), which is removed on subsequent distillation.
Transportation of unstabilized chloroacetone has been banned in the United States by the US Department of Transportation. Stabilized chloroacetone is in hazard class 6.1 (Poison Inhalation Hazard). Its UN number is 1695.