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The most common agent is Methyl tert-butyl ether, also known as methyl tertiary butyl ether and MTBE; a chemical compound with molecular formula C5H12O. MTBE is a volatile, flammable and colorless liquid that is immiscible with water. MTBE has a minty odour vaguely reminiscent of diethyl ether, leading to unpleasant taste and odour in water. MTBE is a gasoline additive, used as an oxygenate and to raise the octane number, although its use has declined in the United States in response to environmental and health concerns. In the US it has been used in gasoline at low levels since 1979 to replace tetra-ethyl lead to help prevent engine knocking. Oxygen helps gasoline burn more completely, reducing tailpipe emissions from pre-1984 motor vehicles.
Other anti-knocking compounds are available as oxygenate additives for gasoline, for example ethanol and related ethers, e.g. tert-amyl methyl ether (TAME). Ethanol has been advertised as a safe alternative by the agricultural interest groups in the USA and Europe. Its lack of toxicity is not different from MTBE, but as a polar solvent, it drives off nonpolar hydrocarbons from the gasoline, a problem that MTBE does not cause.
What else can I help you with?
What is an anti-foaming agent?
simethecone and other non-foaming detergents are good anti-foaming agents.
What Anti caking agents are used in detergent?
Some common anti-caking agents used in detergents include sodium silicate, sodium aluminosilicate, and cellulose. These agents help prevent the detergent particles from clumping together and forming lumps, ensuring that the detergent remains free-flowing and easy to use.
What are the anti caking agent in salt?
Common anti-caking agents in salt include sodium aluminosilicate, magnesium carbonate, and calcium silicate. These agents are added to prevent the salt particles from clumping together due to moisture absorption, ensuring a free-flowing product.
What animal makes an almost repetitive knocking sound at night?
Woodpeckers are known for making a knocking sound, especially during the early morning or at night when they are more active. Their rhythmic tapping on trees or structures can be mistaken for repetitive knocking sounds.
What is knocking in thermodynamics?
Knocking in thermodynamics refers to the sound produced in an engine when combustion isn't uniform due to premature ignition of the air-fuel mixture. This can lead to engine damage and reduced efficiency. It is important to control knocking in engines to maintain performance and reliability.
Which agent is the best anti knocking agent?
Tetraethyl lead was historically the most effective anti-knocking agent in gasoline, but due to environmental and health concerns, it has been mostly phased out. Today, modern additives like methylcyclopentadienyl manganese tricarbonyl (MMT) or ethanol are commonly used as anti-knocking agents in fuel.
What are Anti knocking agent in fuel?
'Gasoline' has the potential to ignite too early ('detonate') in high compression combustion engines, producing a 'knocking' or 'ping' effect. The first compound discovered to remedy this effect was tetraethyllead (tetra-ethyl-lead, TEL). This anti-knocking agent therefore came into widespread use in petroleum, but use of this chemical began to be phased out after the toxicity of lead became known. Thus other antiknock agents used instead of tetraethyllead are: ferrocene, iron pentacarbonyl, toluene, MMT (an organomagnesium compound) and several others.
What is used to increase the anti-knocking property of petrol?
tetraethy lead
What has the author Mark Abramowicz written?
Mark Abramowicz has written: 'Handbook of antimicrobial therapy' -- subject(s): Antibacterial agents, Anti-Infective Agents, Adverse effects, Handbooks, Handbooks, manuals, Antiviral agents, Anti-Bacterial Agents, Chemotherapy, Therapeutic use, Anti-infective agents, Communicable diseases, Drug Therapy
What is protozoa treated with?
Anti-protozoal agents
Which is used to increase the anti-knocking property of petrol?
tetra ethyl benzene
What is the chemical bromine used for?
Bromine is a halogen element. It is used as a gasoline additive (many brands are using his anti-engine knocking agents for their gasoline). Also, it is used for pesticide, the bromine makes a tenting method so it is perfect for fumigate housing.
WHY IS THERE A Knocking from passenger side Ford Fiesta?
anti roll bar bush 2.50
What is micort cream?
Micort cream consists of the synthetic steroids that is used as anti-inflammatory and anti-pruritic agents.
What class of drugs is used to treat chickenpox?
Anti-viral agents.
Why dont snow cannon pipes freeze?
Anti freezing agents are used
Front suspension knocking noise on a Mercedes Benz 230CLK?
most likely the anti roll bar bushes. It was on mine
