SEARCH Articles Figures Tables Tables 14 and 15 show historical U.S. prices for nitration- and commercial-grade toluene, respectively, from 1976 to 1995. The minimum price for the toluene used in chemicals is set by its value in unleaded gasoline, which is the principal use. The ceiling price is set by the relative values of benzene and toluene. When the value of benzene is such that the differential between benzene and toluene exceeds the cost of converting toluene to ben2ene, then the price of toluene is set by its value for the conversion to benzene. A differential of 91.00 t is generally needed to make conversion of toluene to benzene economically attractive. [Publishers Imprint] See Also: Tables 14 and 15 show historical U.S. prices for nitration- and commercial-grade toluene, respectively, from 1976 to 1995. The minimum price for the toluene used in chemicals is set by its value in unleaded gasoline, which is the principal use. The ceiling price is set by the relative values of benzene and toluene. When the value of benzene is such that the differential between benzene and toluene exceeds the cost of converting toluene to ben2ene, then the price of toluene is set by its value for the conversion to benzene. A differential of 91.00 t is generally needed to make conversion of toluene to benzene economically attractive.