BENZENE IS A carcinogenic, flammable, toxic, clear, colorless, volatile liquid with a familiar aromatic odor. It’s used as a solvent for rubber and other polymeric materials and replaced tetraethyl lead as an additive in unleaded gasolines. It’s also an intermediate or raw material in the manufacture of detergents, dyes, explosives, pesticides, plastics, and many other chemicals.It was the sixteenth highest chemical in volume produced in the United States in 1985.