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Tetraethyllead (common name tetraethyl lead), abbreviated TEL, is an organolead compound with the formula (CH3CH2)4Pb. It was mixed with gasoline (petrol) beginning in the 1920s as an inexpensive octane booster that allowed engine compression to be raised substantially, which in turn increased vehicle performance and fuel economy. TEL was phased out starting in the US in the mid-1970s because of its neurotoxicity and its damaging effect on catalytic converters. It is still used as an additive in some grades of aviation gasoline.  Innospec has claimed to be the last firm still making TEL, but as of 2013 it appears to also be illegally produced by multiple companies in China.

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Wikipedia Español La enciclopedia libre

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Tetraetilo de plomo
El tetraetilo de plomo, (CH3CH2)4Pb, es un componente de química organometálica tóxico usado en la extinta gasolina con plomo super de 97 octanos y Normal de 92 octanos como aditivo antidetonante.

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Wikipédia Français

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Le tétraéthylplomb, ou plomb tétraéthyle, est un liquide incolore, huileux, d'odeur caractéristique de formule brute Pb(C2H5)4 et très toxique.

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Tetraetyloołów lub czteroetylek ołowiu to związek metaloorganiczny o wzorze (C2H5)4Pb.

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