Acetone Characteristics
Synonyms Dimethyl ketone, Ketone propane, 2-Propanone
CAS No. 67-64-1
Chemical formula (CH3)2CO
Vapour density 2.0 (air = 1)
Safe Work Australia ES TWA 500 ppm
STEL 1,000 ppm
Flammable limits LEL 2.5 % by volume
UEL 14.3 % by volume (at 100 °C)
Equipment group IIA
Temperature classification T1
Chemical/physical properties Acetone at room temperature is a colourless, highly volatile liquid with an aromatic mint-like odour. It is soluble in water.
Hazardous properties Acetone has low flash point (<-20 °C) but a high ignition temperature (539 °C), it evaporates readily forming a highly flammable vapour even in aqueous solution. 
Acetone is an irritant to the mucous membranes (eyes and upper respiratory tract) and prolonged inhalation of the vapour can cause narcosis, dizziness, nausea and headache. 
Occurrence/Uses Acetone is a common industrial solvent used in adhesives, sealants, surface coatings, lacquers, agricultural and laboratory chemicals, etc. It is widely used in personal care products such as nail polish and nail polish remover.
Detectors available Gas detector tube (20 ppm – 5 % by volume)
Photoionisation (PID) (0 – 40 ppm)
Catalytic bead (0 – 100% LEL)
Suggested alarm levels Lo: 5 % LEL  (1,250 ppm)
Hi: 10 % LEL (2,500 ppm)
Notes Acetone should be stored under special conditions due its flammable nature.


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