Toluene, an organic compound with the chemical formula C7H8, is a colourless, volatile liquid with a peculiar aromatic odour, an aromatic hydrocarbon. It has strong refractive property. Miscible with ethanol, ether, acetone, chloroform, carbon disulfide and glacial acetic acid, insoluble in water. Flammable, vapour can form explosive mixtures with air, the volume concentration of the mixture can be exploded in the lower range. Low toxicity, LD50 (rat, oral) 5000mg/kg. high concentration of gas has anaesthesia, irritation.

Toluene is an important chemical raw material, can be used in the manufacture of spray paint, explosives, pesticides, benzoic acid, dyes, synthetic resins and polyester. Toluene is also used as a solvent and it is also one of the components of petrol.

Basic information

Main applications

Application 1: Toluene is produced mainly from crude oil by a petrochemical process. As a solvent, it is used in oils, resins, natural and synthetic rubbers, coal tar, asphalt, cellulose acetate, as well as cellulose paints and varnishes, and as a solvent for photographic plates and inks.

Application 2: Toluene is also a major feedstock for organic synthesis, especially benzoyl chloride and phenyl, saccharin, trinitrotoluene and many dyes. It is also a component of aviation and automotive gasoline，toluene is widely used as a solvent and additive to high octane gasoline and is an important feedstock for organic chemicals.

Application 2:  The cyclic chlorination products of toluene are intermediates in insecticides, pharmaceuticals and dyes. The oxidation of toluene gives benzoic acid, which is an important food preservative (mainly using its sodium salts) and is also used as an intermediate in organic synthesis.

Storage method

Storage precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The temperature should not exceed 30°C. Keep containers sealed. Store separately from oxidising agents and do not mix. Use explosion-proof lighting and ventilation facilities. Do not use spark-prone machinery and tools. The storage area should be equipped with spill response equipment and suitable shelter materials.