Acetone is a colourless, highly-flammable liquid hydrocarbon with a sweet smell and the formula CH3COCH3.

It is widely used as a solvent in laboratories and is readily soluble in water, ethanol, and other common solvents. Residues vaporise quickly leaving a dry surface. The most familiar household use of acetone is as the active ingredient in nail polish remover.

Extremely flammable in both liquid and vapour form. Harmful if swallowed or inhaled and causes irritation to skin and eyes.

Properties: Melting point -95°C
Boiling point 56°C
Relative density 0.819 (at 0°C, Water = 1)
Flash point -20°C
Auto-ignition temperature 465°C
Explosive limits 2 to 13% in air