Toluene is an organic compound with the chemical formula C7H8. It is a colorless, volatile liquid with a unique aromatic aroma, and belongs to the aromatic hydrocarbon class. Has strong refractive index. Can be miscible with ethanol, ether, acetone, chloroform, carbon disulfide, and glacial acetic acid, but insoluble in water. Flammable, vapor can form explosive mixtures with air, and explosions can occur when the volume concentration of the mixture is in a low range. Low toxicity, median lethal dose (rat, oral) 5000mg/kg. High concentration gases have anesthetic and irritating properties.
Toluene is an important chemical raw material that can be used to manufacture paints, explosives, pesticides, benzoic acid, dyes, synthetic resins, and polyester. Toluene can also be used as a solvent, and it is also a component of gasoline.