User:Milton Beychok/Sandbox: Difference between revisions
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[[Gasoline]] moved to Namespace as a developing article. | [[Gasoline]] moved to Namespace as a developing article. | ||
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{{main|Gasoline|Tetra-ethyl lead}} | |||
Tetra-ethyl lead, commonly referred to as TEL, is a viscous liquid with the chemical formula (CH<sub>3</sub>CH<sub>2</sub>)<sub>4</sub>Pb. Once widely used (circa 1925 to 1990) to increase the [[octane rating]] of [[gasoline]] ([[petrol]]), TEL usage in gasoline has been largely phased out by most nations primarily because of the toxicity of the lead [[emission]]s from [[internal combustion engine]]s burning gasoline containing TEL. Another reason for discontinuing TEL usage was that it degraded the efficiency of the [[catalytic converter]]s installed in automotive vehicles to reduce their emissions of [[Air pollution|air pollutants]]. | |||
Revision as of 12:47, 23 April 2009
Gasoline moved to Namespace as a developing article.
Tetra-ethyl lead, commonly referred to as TEL, is a viscous liquid with the chemical formula (CH3CH2)4Pb. Once widely used (circa 1925 to 1990) to increase the octane rating of gasoline (petrol), TEL usage in gasoline has been largely phased out by most nations primarily because of the toxicity of the lead emissions from internal combustion engines burning gasoline containing TEL. Another reason for discontinuing TEL usage was that it degraded the efficiency of the catalytic converters installed in automotive vehicles to reduce their emissions of air pollutants.