antiknock gasoline
41Methylcyclopentadienyl manganese tricarbonyl — Methylcyclopentadienyl manganese tricarbonyl …
42Midgley, Thomas, Jr. — born May 18, 1889, Beaver Falls, Pa., U.S. died Nov. 2, 1944, Worthington, Ohio U.S. engineer and chemist. After studying at Cornell University, he worked as an industrial researcher and administrator. In 1921 he discovered the effectiveness of… …
43MTBE controversy — Contents 1 Notable incidents in the US 1.1 Fallston, Maryland 1.2 Jacksonville, Maryland …
44Oil refinery — Anacortes Refinery (Tesoro), on the north end of March Point southeast of Anacortes, Washington An oil refinery or petroleum refinery is an industrial process plant where crude oil is processed and refined into more useful petroleum products,… …
45Benzene — For other uses, see Benzene (disambiguation). See also: Benzole Benzene …
46Alkylation — Alkylating agent redirects here. For the class of drugs, see alkylating antineoplastic agent. Alkylation is the transfer of an alkyl group from one molecule to another. The alkyl group may be transferred as an alkyl carbocation, a free radical, a …
47environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
48tetraethyl lead — ☆ tetraethyl lead [te′trə eth′əl ] n. a heavy, colorless, poisonous compound of lead, Pb(C2H5) 4, added to gasoline to increase power and prevent engine knock * * * ▪ chemical compound organometallic compound that is the chief antiknock… …
49toluene — /tol yooh een /, n. Chem. a colorless, water insoluble, flammable liquid, C7H8, having a benzenelike odor, obtained chiefly from coal tar and petroleum: used as a solvent in the manufacture of benzoic acid, benzaldehyde, TNT, and other organic… …
50octane number — oc′tane num ber n. chem. a designation of antiknock quality of gasoline, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics. Also… …
