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antiknock
(redirected from antiknocking)

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antiknock

Substance added to petrol to reduce knock in car engines, caused by premature combusting. It is a mixture of dibromoethane and tetraethyl lead. Its use in leaded petrol has resulted in atmospheric pollution by lead compounds.



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? Mentioned in ? References in periodicals archive
 
gasoline producers have blended MTBE into automotive fuels - primarily their premium grades - to boost octane during lead's phaseout as an antiknocking agent.
New probes of gas additive's toxicity by Raloff, Janet / Science News
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