Go Back

CAS # 67-64-1


Acetone (systematically named propane) is an organic compound with the formula (CH3)2CO.  It is a colorless, volatile, flammable liquid, and is the simplest ketone.


Physical State And Appearance



 Fruity, mint-like. Fragrant, Ethereal

Molecular Weight

 58.08 g/mole


 Colorless. Clear

Boiling Point

 56.2°C (133.2°F)

Critical Temperature

 235°C (455°F)

Flash Point

 −17 °C

Melting Point

 -95.35 (-139.6°F)

Specific Gravity

 0.79 (Water = 1)

Vapor Pressure

 24 kappa (@ 20°C)

Vapor Density

 2 (Air = 1)

Odor Threshold

 62 ppm

Water/Oil Dist. Coif

The product is more soluble in water; log(oil/water) = - 0.2

Dispersion Properties

 See solubility in water


 Easily soluble in cold water, hot water

Acetone wt.%

 94 min

MEK, wt.%

 2.0 max

MIPK (methyl isopropyl ketone) wt.%

 0.5 max

Water, wt.%

 3.0 max

Specific Gravity @ 20/20C wt.%

 0.82 max

Non-volatile Residue wt.%

 0.001 max


·        Acetone is a good solvent for most plastics and synthetic fibres including those used in laboratory bottles made of polystyrene, polycarbonate and some types of polypropylene. It is used as a volatile component of some paints and varnishes.

·        Although flammable itself, acetone is also used extensively as a solvent for the safe transporting and storing of acetylene, which cannot be safely pressurized as a pure compound.

·        Acetone is used in a variety of general medical and cosmetic applications and is also listed as a component in food additives and food packaging. Acetone is commonly used in the skin rejuvenation process in medical offices and medical spas. Since the days of ancient Egypt, people have been using chemexfoliation methods, also known as chemical peeling, to rejuvenate skin.

·        In the laboratory, acetone is used as a polar aprotic solvent in a variety of organic reactions, such as SN2 reactions. The use of acetone solvent is also critical for the Jones oxidation. It is a common solvent for rinsing laboratory glassware because of its low cost and volatility; however, it does not form a zoetrope with water.

·        It can be used as an artistic agent; when rubbed on the back of a laser print or photocopy placed face-down on another surface and burnished firmly, the toner of the image transfers to the destination surface.