ETHYL, in chemistry, the alkyl (aliphatic hydrocarbon) rad ical (See CHEMISTRY, ORGANIC: Aliphatic Division.) The hydride of ethyl is better known as ethane ; the alcohol is the ethyl alcohol of commerce (spirit of wine) (see ALCOHOL) ; and the oxide is ordinary ether (q.v.).
Ethyl is also a trade-mark denoting a fluid (the active ingredi ent is lead) mixed with motor fuel to eliminate knocking in internal combustion engines (q.v.) . Other anti-knock fuels con tain lead or other substances. See ORGANO-METALLIC COMPOUNDS.