Search results
Results from the WOW.Com Content Network
An antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating by raising the temperature and pressure at which auto-ignition occurs.
In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
The compound was originally examined as a potential antiknock agent. [2] (Norbornadiene)molybdenum tetracarbonyl is a precursor to other derivatives of the type L 2 Mo(CO) 4. This conversion exploits the lability of the diene ligand: [3] (C 7 H 9)Mo(CO) 4 + 2 L → C 7 H 9 + L 2 Mo(CO) 4
Tetraethyllead (commonly styled tetraethyl lead), abbreviated TEL, is an organolead compound with the formula Pb(C 2 H 5) 4.It was widely used as a fuel additive for much of the 20th century, first being mixed with gasoline beginning in the 1920s.
Tetramethyllead, also called tetra methyllead and lead tetramethyl, is a chemical compound used as an antiknock additive for gasoline. [1] Its use is being phased out for environmental considerations. [2] The National Institute for Occupational Safety and Health (NIOSH) in the United States has identified tetramethyllead as a potential ...
Words with specific British English meanings that have different meanings in American and/or additional meanings common to both languages (e.g. pants, cot) are to be found at List of words having different meanings in American and British English. When such words are herein used or referenced, they are marked with the flag [DM] (different meaning).
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
N-Methylaniline (NMA) is an aniline derivative.It is an organic compound with the chemical formula C 6 H 5 NH(CH 3).The substance is a colorless viscous liquid, Samples turn brown when exposed to air.