tetraetyllead
Tetraethyllead, often abbreviated as TEL, is an organometallic compound with the chemical formula Pb(C2H5)4. It is a colorless liquid with a faint odor. Historically, its primary application was as an additive to gasoline to increase its octane rating, thereby preventing engine knocking and allowing for higher compression ratios. This use began in the 1920s and continued for several decades in many parts of the world.
The addition of TEL to gasoline was a significant development in internal combustion engine technology, enabling
In response to these environmental and health concerns, many countries began phasing out leaded gasoline. Regulations