2 GENERAL INFORMATION ON EXPOSURECumene (iso-propylbenzene) is produced via alkylation of benzene with propene using an acidic catalyst. The product is recovered from high boiling reaction components while non reacted benzene is recycled. From natural sources cumene is manufactured from distillation of coal tar and petroleum fractions.The compound is manufactured in EU by 8 companies in 7 European countries. Based on IUCLID data, the total EU production volume ranged between 850,000 and 4,100,000 tonnes in 1992/93. One country imports this product from outside.Cumene is used in chemical industry in categories 2 (basic chemicals) and 3 (chemical used in synthesis). The compound is mainly used as an intermediate in the production of phenol and acetone (aprox. 95%). It is also a minor constituent of gasolines and solvents, but its presence should not be regarded as an additive but as an integrated ingredient from a petroleum derivative. Therefore, the exposure in these cases should be considered in the risk assessment of petroleum derivatives. Other uses for cumene include: the synthesis of alpha-methylstyrene, acetophenone and detergents; the manufacture of di-isopropylbenzene; the catalyst for acrylic polyester-type resins. It is found as an isomer in the general C9 aromatic hydrocarbon content of solvents, particularly those used in the printing industry.
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