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See all on WikipediaAntiknock agent - Wikipedia
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. The mixture known as gasoline or petrol, when used in high compression internal combustion engines, has a tendency to … See more
Early research was led by A. H. Gibson and Harry Ricardo in England and Thomas Midgley Jr. and Thomas Boyd in the United States. The discovery that lead additives modified this behavior led to the widespread … See more
Typical agents that have been used for their antiknock properties are:
• Tetraethyllead (still in use as a high octane additive)
• MTBE
• Ethanol
• See more1920sThe discovery that lead additives modified this behavior led to the widespread adoption of the practice in the 1920s and therefore more powerful higher compression engines.1970sThe phase out of leaded gasoline from the 1970s onward was reported by the United Nations Environmental Programme to be responsible for "$2.4 trillion in annual benefits, 1.2 million fewer premature deaths, higher overall intelligence and 58 million fewer crimes."1996From January 1, 1996, the Clean Air Act banned the sale of leaded fuel for use in on-road vehicles in the United States.2000The EPA began phasing MTBE out in 2000.20052005's Energy Policy Act, with significant proportions of fuel ethanol designated as the replacement antiknock agent for the US automotive fuel system.2006Leaded gasoline was phased out in sub-Saharan Africa, starting 1 January 2006.World War IIXylidine was an important antiknock agent in very high performance aviation gasolines.• Media related to Antiknock agents at Wikimedia Commons See more
Wikipedia text under CC-BY-SA license Antiknock agent - Simple English Wikipedia, the free encyclopedia
WEBAn antiknock agent is added to gasoline. It reduces engine knocking and increase the fuel's octane rating. Gasoline is a fuel mixture. High compression internal combustion …
Tetraethyllead - Wikipedia
Tetraethyllead (commonly styled tetraethyl lead), abbreviated TEL, is an organolead compound with the formula Pb(C2H5)4. It was widely used as a fuel additive for much of the 20th century, first being mixed with gasoline beginning in the 1920s. This "leaded gasoline" had an increased octane rating that allowed engine compression to be raised substantially and in turn increased vehicle pe…
Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 9 mins
Tetraethyl lead (TEL) | Definition, History, Uses,
WEBtetraethyl lead (TEL), organometallic compound containing the toxic metal lead that for much of the 20th century was the chief antiknock agent for automotive gasoline, or petrol.
Category:Antiknock agents - Wikipedia
WEBWikimedia Commons has media related to Antiknock agents. The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes .
Antiknock Agents - an overview | ScienceDirect Topics
WEBAntiknock agents are chemical compounds, such as methyclyclopentadienyl manganese tricarbonyl, added to gasoline to prevent engine knocking and improve fuel efficiency. AI …
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Antiknock agent - Oxford Reference
WEBA petrol additive that inhibits preignition (‘knocking’) in internal-combustion engines. Antiknock agents work by retarding combustion chain reactions. The commonest, …
1: Tetraethyllead: Kettering and Midgley - Chemistry …
WEBBut Midgley and Kettering’s interest in ethyl alcohol fuel did not fade once tetraethyl lead was discovered as an antiknock in December, 1921. In fact, not only was ethyl alcohol a source of continued interest as an …
Charles F. Kettering and the 1921 discovery of tetraethyl lead
WEBLeaded gasoline allowed an increase in engine power and efficiency by raising fuel anti-knock quality — what is today called the “octane rating” based on iso-octane reference …
What are Antiknock Agents? - Collision Select
WEBJun 10, 2013 · What are antiknock agents? In short, an antiknock agent is a gasoline additive. The main purpose of having antiknock agents in the shop is to reduce engine …
Antiknock agent | chemistry | Britannica
WEB…gasoline are its volatility and antiknock quality. Volatility is a measure of the ease of vaporization of gasoline, which is adjusted in the production process to account for …
Antiknock Compounds - an overview | ScienceDirect Topics
WEBAlong with the furyl polymer, the sealing material also consists of an organosilane coupling agent, a cationic surfactant, hollow microspheres, and, optionally, a dispersing agent …
Antiknock agent - chemeurope.com
WEBAn antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating.
Antiknock agent - WikiMili, The Best Wikipedia Reader
WEBAn 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.
Anti-knock agent - Wikipedia
WEBFrom Wikipedia, the free encyclopedia. Redirect page. Redirect to: Antiknock agent; Retrieved from " ...
Antiknock agent - Knowledge and References | Taylor & Francis
WEBAn antiknock agent is a substance added to gasoline to prevent engine knocking or detonation during combustion. Examples of antiknock agents include tetraethyllead. …
Category : Antiknock agents - Wikimedia
WEBThis category has the following 2 subcategories, out of 2 total.
ANTIKNOCK | English meaning - Cambridge Dictionary
WEBAntiknock agents allow the use of higher compression ratios for greater efficiency and peak power. It functions as an antiknock agent by the action of the carbonyl groups. …
N-Methylaniline - Wikipedia
WEBN-Methylaniline is a principal component of NMA (monomethylaniline), a non-traditional antiknock agent increasingly used by petroleum refiners and fuel distributors around the …
Why was there ever lead-based paint? : r/chemistry - Reddit
WEBYes. It was added as an anti-knocking agent. https://en.wikipedia.org/wiki/Antiknock_agent. The use of lead in paints is totally unconnected to its use in gasoline. The compounds of …
Talk:Antiknock agent - Wikipedia
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ANTIKNOCK | definition in the Cambridge English Dictionary
WEBAntiknock agents allow the use of higher compression ratios for greater efficiency and peak power. It functions as an antiknock agent by the action of the carbonyl groups. …
Category talk:Antiknock agents - Wikipedia
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