tetramethyllead
noun Date: 1964 a volatile poisonous liquid Pb(CH3)4 used especially formerly as an antiknock agent

New Collegiate Dictionary. 2001.

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  • tetramethyllead — /te treuh meth euhl led /, n. Chem. a colorless liquid, (CH3)4Pb, insoluble in water, slightly soluble in alcohol and benzene, used as an antiknock agent in gasoline. Also called TML [1960 65; TETRA + METHYL + LEAD2] * * * …   Universalium

  • tetramethyllead — tet•ra•meth•yl•lead [[t]ˈtɛ trəˌmɛθ əlˈlɛd[/t]] n. chem. a colorless liquid, (CH3)4Pb, used as an antiknock agent in gasoline • Etymology: 1960–65 …   From formal English to slang

  • tetramethyllead — /te treuh meth euhl led /, n. Chem. a colorless liquid, (CH3)4Pb, insoluble in water, slightly soluble in alcohol and benzene, used as an antiknock agent in gasoline. Also called TML [1960 65; TETRA + METHYL + LEAD2] …   Useful english dictionary

  • radical — radicalness, n. /rad i keuhl/, adj. 1. of or going to the root or origin; fundamental: a radical difference. 2. thoroughgoing or extreme, esp. as regards change from accepted or traditional forms: a radical change in the policy of a company. 3.… …   Universalium

  • Organolead compound — Organolead compounds are chemical compounds containing a chemical bond between carbon and lead. Organolead chemistry is the corresponding science. The first organolead was hexaethyldilead synthesised in 1858.[1] Sharing the same group with carbon …   Wikipedia

  • lead-free — adj. 1. not containing the element lead. [WordNet 1.5] 2. specifically: Not containing a lead additive such as tetraethyllead or tetramethyllead; of gasoline; as, Most modern cars run on lead free gasoline. Oposite of {leaded}. Syn: nonleaded,… …   The Collaborative International Dictionary of English

  • Chloromethane — IUPAC name …   Wikipedia

  • Free radical reaction — A free radical reaction is any chemical reaction involving free radicals. This reaction type is abundant in organic reactions. Two pioneering studies into free radical reactions have been the discovery of the triphenylmethyl radical by Moses… …   Wikipedia

  • TML — Chem. tetramethyllead. * * * …   Universalium

  • lead processing — Introduction       preparation of the ore for use in various products.       Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… …   Universalium

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