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Tert-Amyl Ethyl Ether
''tert''-Amyl ethyl ether (TAEE) is a chemical compound, classified as an ether, with the molecular formula C7H16O. It is used as an additive in gasoline fuels as an oxygenate and also as a solvent in organic chemistry. TAEE is prepared by acid-catalyzed addition of ethanol to 2-methyl-2-butene. See also * List of gasoline additives References {{DEFAULTSORT:Amyl ethyl ether, tert- Ether solvents Oxygenates Ethoxy compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tert-Amyl Methyl Ether
''tert''-Amyl methyl ether (TAME) is an ether used as a fuel oxygenate. TAME derives from C5 distillation fractions of naphtha. It has an ethereous odor. Unlike most ethers, it does not require a stabilizer as it does not form peroxides on storage. Other names: * 2-Methoxy-2-methylbutane * Butane, 2-methoxy-2-methyl- * 1,1-Dimethylpropyl methyl ether * Methyl tert-pentyl ether * Methyl tert-Amyl ether * 2-Methyl-2-methoxybutane * Methyl 2-methyl-2-butyl ether * tert-Pentyl methyl ether * Tertiary amyl methyl ether * Methyl 1,1-dimethylpropyl ether * 2-Methoxy-2-methylbutane Uses TAME is mostly used as an oxygenate to gasoline. It is added for three reasons: to increase octane enhancement, to replace banned tetraethyl lead, and to raise the oxygen content in gasoline. It is known that TAME in fuel reduces exhaust emissions of some volatile organic compounds. TAME is also used as a solvent in organic synthesis as a more environmentally friendly alternative to some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ether
In organic chemistry, ethers are a class of compounds that contain an ether group, a single oxygen atom bonded to two separate carbon atoms, each part of an organyl group (e.g., alkyl or aryl). They have the general formula , where R and R′ represent the organyl groups. Ethers can again be classified into two varieties: if the organyl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ether, whereas if they are different, the ethers are called mixed or unsymmetrical ethers. A typical example of the first group is the solvent and anaesthetic diethyl ether, commonly referred to simply as "ether" (). Ethers are common in organic chemistry and even more prevalent in biochemistry, as they are common linkages in carbohydrates and lignin. Structure and bonding Ethers feature bent linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. The barrier to rotation about the C–O bonds is low. The bonding of ox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxygenate
In the liquid fuel industry, oxygenates are hydrocarbon-derived fuel additives containing at least one oxygen atom to promote complete combustion. Absent oxygenates, fuel combustion is usually incomplete, and the exhaust stream pollutes the air with carbon monoxide, soot particles, aromatic and polyaromatic hydrocarbons, and nitrated polyaromatic hydrocarbons. The most common oxygenates are either alcohols or ethers, but ketones and aldehydes are also included in this distinction. Carboxylic acids and esters can be grouped with oxygenates in the simple definition that they contain at least one oxygen atom. However, they are usually unwanted in oils, and therefore likely fuels, due to their environmental toxicity and tendency to cause catalyst poisoning and corrosion during oil production and refining. * Alcohols: ** Methanol (MeOH) ** Ethanol (EtOH); see also Common ethanol fuel mixtures ** Isopropyl alcohol (IPA) ** ''n''-Butanol (BuOH) ** Gasoline grade ''tert''-buta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solvent
A solvent (from the Latin language, Latin ''wikt:solvo#Latin, solvō'', "loosen, untie, solve") is a substance that dissolves a solute, resulting in a Solution (chemistry), solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid. Water is a solvent for Chemical polarity#Polarity of molecules, polar molecules, and the most common solvent used by living things; all the ions and proteins in a Cell (biology), cell are dissolved in water within the cell. Major uses of solvents are in paints, paint removers, inks, and dry cleaning. Specific uses for Organic compound, organic solvents are in dry cleaning (e.g. tetrachloroethylene); as paint thinners (toluene, turpentine); as nail polish removers and solvents of glue (acetone, methyl acetate, ethyl acetate); in spot removers (hexane, petrol ether); in detergents (D-limonene, citrus terpenes); and in perfumes (ethanol). Solvents find various applications in chemical, pharmaceutical, oil, and gas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethanol
Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound with the chemical formula . It is an Alcohol (chemistry), alcohol, with its formula also written as , or EtOH, where Et is the pseudoelement symbol for ethyl group, ethyl. Ethanol is a Volatility (chemistry), volatile, flammable, colorless liquid with a characteristic wine-like odor and pungent taste. As a psychoactive depressant, it is the active ingredient in alcoholic beverages, and the second most consumed drug globally behind caffeine. Ethanol is naturally produced by the fermentation process of sugars by yeasts or via petrochemical processes such as ethylene hydration. Historically it was used as a general anesthetic, and has modern medical applications as an antiseptic, disinfectant, solvent for some medications, and antidote for methanol poisoning and ethylene glycol poisoning. It is used as a chemical solvent and in the Chemical synthesis, synthesis of orga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-Methyl-2-butene
2-Methyl-2-butene, 2m2b, 2-methylbut-2-ene, beta-isoamylene, or trimethylethylene is an alkene hydrocarbon with the molecular formula C5H10. Used as a free radical scavenger in trichloromethane (chloroform) and dichloromethane (methylene chloride). It is also used to scavenge hypochlorous acid (HOCl) in the Pinnick oxidation. John Snow, the English physician, experimented with it in the 1840s as an anesthetic, but stopped using it for unknown reasons. As a crucial fact, it is a flammable material, an irritant, can result in health hazards and environmental hazards. See also *Pentene Pentenes are alkenes with the chemical formula . Each molecule contains one double bond within its molecular structure. Six different compounds are in this class, differing from each other by whether the carbon atoms are attached linearly or in ... References Hydrocarbons Alkenes {{hydrocarbon-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Gasoline Additives
Gasoline additives may increase gasoline's octane rating, thus allowing the use of higher compression ratios for greater efficiency and power, or act as corrosion inhibitors or lubricants. Other additives include metal deactivators, oxygenates and antioxidants. Some additives are harmful and are regulated or banned in some countries. Fictional additives *Sugar, as seen in ''The Passionate Stranger'' (1957) and List of common misconceptions, popularly believed to damage the engine. Additives *Oxygenates ** Alcohol (chemistry), Alcohols: *** Methanol (MeOH) *** Ethanol (EtOH); see also common ethanol fuel mixtures *** Isopropyl alcohol (IPA) *** n-Butanol, ''n''-butanol (BuOH) *** Gasoline grade tert-Butanol, ''t''-butanol (GTBA) ** Ethers: *** Methyl tert-butyl ether (MTBE), now outlawed in many states of the United States, U.S. for road use because of Methyl tert-butyl ether controversy, water contamination. *** Tertiary amyl methyl ether (TAME) *** Tertiary hexyl methyl ether (TH ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ether Solvents
In organic chemistry, ethers are a class of organic compound, compounds that contain an ether functional group, group, a single oxygen atom bonded to two separate carbon atoms, each part of an organyl group (e.g., alkyl or aryl). They have the general formula , where R and R′ represent the organyl groups. Ethers can again be classified into two varieties: if the organyl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ether, whereas if they are different, the ethers are called mixed or unsymmetrical ethers. A typical example of the first group is the solvent and anaesthetic diethyl ether, commonly referred to simply as "ether" (). Ethers are common in organic chemistry and even more prevalent in biochemistry, as they are common linkages in carbohydrates and lignin. Structure and bonding Ethers feature bent linkages. In dimethyl ether, the Molecular geometry#Bonding, bond angle is 111° and C–O distances are 141 Picometre, pm. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
