antiknock agent

This substance was commonly used as an antiknock agent in gasoline until 2005.

It functions as an antiknock agent by the action of the carbonyl groups.

Years ago, Tetraethyllead was added to gasoline as an antiknock agent.

Antiknock agents allow the use of higher compression ratios for greater efficiency and peak power.

The typical antiknock agents in use are:

Ferrocene, an organometallic compound of iron, is also used as an antiknock agent although with some significant drawbacks.

Ferrocene and methylcyclopentadienyl manganese tricarbonyl have been used as antiknock agents.

The company also gained an important contract to manufacture monomethylaniline used as an antiknock agent in high octane aviation fuel.

An antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating.

DIPE is used as an antiknock agent.

It had been established by 1921 that ethanol was an effective antiknock agent, but TEL was introduced instead mainly for commercial reasons.

Lead itself is the reactive antiknock agent, and TEL serves as a gasoline-soluble lead carrier.

Prof. Nesmeyanov had also developed a number of industrial chemistry processes, including production of pharmaceuticals, antiknock agents, and artificial black caviar.

There, he worked with Thomas Midgley, Jr., as part of Kettering's team researching antiknock agents.

Antiknock agents are grouped into "high-percentage" additives, such as alcohol, and "low-percentage" additives based on heavy elements.

Ferrocene and its derivatives are antiknock agents used in the fuel for petrol engines; they are safer than tetraethyllead, previously used.

Federal regulations prohibit the use of organolead compounds as antiknock agents in gasoline in Canada and set limits for lead emissions from secondary lead smelters.

In 1921, General Motors patented the use of Tetraethyllead as an antiknock agent leading to the development of higher compression engines resulting in more power and efficiency.

During World War I, Midgley developed a tetraethyl lead antiknock agent that raised compression ratios in airplane engines; subsequently, lead was routinely added to automobile gasoline.

TEL was extensively used as a gasoline additive beginning in the 1920s, wherein it served as an effective antiknock agent and prevented exhaust valve and valve seat wear.

Triacetin can also be used as a fuel additive as an antiknock agent which can reduce engine knocking in gasoline, and to improve cold and viscosity properties of biodiesel.

Commercially useful examples include (CH)Co(CO), which is used in the synthesis of substituted pyridines, and methylcyclopentadienyl manganese tricarbonyl, an antiknock agent in petrol.

A graduate of Transylvania College and Massachusetts Institute of Technology, Thomas worked as a research chemist at General Motors as part of a team researching antiknock agents.

Executive Summary Methylcyclopentadienyl manganese tricarbonyl (MMT) is an organic derivative of manganese (Mn) used in Canadian gasoline since 1976 as an antiknock agent and to improve octane rating.

A manganese-carrying additive, methylcyclopentadienyl manganese tricarbonyl (MMT or methylcymantrene), was used for a time as an antiknock agent, though its safety is controversial and it has been the subject of bans and lawsuits.