ethane molecular formula


Infrared telescopic observations cast significant doubt on this hypothesis, and the Huygens probe, which landed on Titan in 2005, failed to observe any surface liquids, although it did photograph features that could be presently dry drainage channels. The bond parameters of ethane have been measured to high precision by microwave spectroscopy and electron diffraction: rC–C = 1.528(3) Å, rC–H = 1.088(5) Å, and ∠CCH = 111.6(5)° by microwave and rC–C = 1.524(3) Å, rC–H = 1.089(5) Å, and ∠CCH = 111.9(5)° by electron diffraction (the numbers in parentheses represents the uncertainties in the final digits).[13]. On a much smaller scale, in scientific research, liquid ethane is used to vitrify water-rich samples for electron microscopy (cryo-electron microscopy). Ethane is a saturated hydrocarbon found in gaseous state. Ethane (/ˈɛθeɪn/ or /ˈiːθeɪn/) is an organic chemical compound with chemical formula C2H6. Unlike propane, liquid ethane is not in common use as an industrial or domestic fuel. It has a molecular weight of 30.07 g/mol and is the second simplest organic compound after methane. In the chemical industry, more selective chemical reactions are used for the production of any particular two-carbon haloalkane. Presently, INEOS operates a 1000 t/a (tonnes per annum) ethane-to-vinyl chloride pilot plant at Wilhelmshaven in Germany. It is prepared by laboratory method using sodium propionate. The chemical or molecular formula of ethane is-, Ethane has a tetrahedral geometry and the carbon atoms have sp3 hybridization. The second most important constituent of natural gas, it also occurs dissolved in petroleum oils and as a by-product of oil refinery operations and of the carbonization of coal. [citation needed]. At higher temperatures, especially in the range 600–900 °C (1,112–1,652 °F), ethylene is a significant product. Ethane can react with the halogens, especially chlorine and bromine, by free radical halogenation. Experimentally, ethane is under investigation as a feedstock for other commodity chemicals. Until they warm to room temperature, the vapors from liquid ethane are heavier than air and can flow along the floor or ground, gathering in low places; if the vapors encounter an ignition source, the chemical reaction can flash back to the source of ethane from which they evaporated. Its chief use is as feedstock for ethylene production. The physical origin of the barrier is still not completely settled,[16] although the overlap (exchange) repulsion[17] between the hydrogen atoms on opposing ends of the molecule is perhaps the strongest candidate, with the stabilizing effect of hyperconjugation on the staggered conformation contributing to the phenomenon. More than 90 percent of the ethane produced in the 1960s was burned as fuel without separation from natural gas. For example, an ethyl group linked to a hydroxyl group yields ethanol, the alcohol in beverages. Ethane, a colourless, odourless, gaseous hydrocarbon (compound of hydrogen and carbon), belonging to the paraffin series; its chemical formula is C 2 H 6. At room temperature, ethane is an extremely flammable gas. Ethane is the second simplest alkane followed by methane. [7] Ethane was discovered dissolved in Pennsylvanian light crude oil by Edmund Ronalds in 1864.[8][9]. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Updates? Global ethane quantities have varied over time, likely due to flaring at natural gas fields. Eclipsed conformation is the least stable of all ethane conformations because the repulsive forces between electron pairs in the C―H bonds of adjacent carbons are maximized. This reaction proceeds through the propagation of the ethyl radical: Because halogenated ethanes can undergo further free radical halogenation, this process results in a mixture of several halogenated products. Let us know if you have suggestions to improve this article (requires login). Combustion may also occur without an excess of oxygen, forming a mix of amorphous carbon and carbon monoxide. Ethane is structurally represented as-. It is not a carcinogen. Atmospheric ethane results from the Sun's photochemical action on methane gas, also present in these atmospheres: ultraviolet photons of shorter wavelengths than 160 nm can photo-dissociate the methane molecule into a methyl radical and a hydrogen atom. 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In fact, ethane's global warming potential largely results from its conversion in the atmosphere to methane. Oxidative chlorination of ethane has long appeared to be a potentially more economical route to vinyl chloride than ethene chlorination. The chief use of ethane is the production of ethene (ethylene) by steam cracking. Required fields are marked *. Prior to the 1960s, ethane and larger molecules were typically not separated from the methane component of natural gas, but simply burnt along with the methane as a fuel. and Saltzman, E.S. Today, ethane is an important petrochemical feedstock and is separated from the other components of natural gas in most well-developed gas fields. Related compounds may be formed by replacing a hydrogen atom with another functional group; the ethane moiety is called an ethyl group. Omissions? Ethane is an organic chemical compound with chemical formula C 2H 6. Its chief use is as feedstock for ethylene production. When mixed with air at 3.0%–12.5% by volume, it forms an explosive mixture. In December 2007 the Cassini probe found at least one lake at Titan's south pole, now called Ontario Lacus because of the lake's similar area to Lake Ontario on Earth (approximately 20,000 km2). Corrections? When diluted with steam and briefly heated to very high temperatures (900 °C or more), heavy hydrocarbons break down into lighter hydrocarbons, and saturated hydrocarbons become unsaturated. Combustion occurs by a complex series of free-radical reactions. At standard temperature and pressure, ethane is a colorless, odorless gas. Various refrigeration strategies exist: the most economical process presently in wide use employs a turboexpander, and can recover more than 90% of the ethane in natural gas. Ethane can displace oxygen and become an asphyxiation hazard. Ethane is structurally the simplest hydrocarbon that contains a single carbon–carbon bond. Ethane gas can be liquefied under pressure or at reduced temperatures and thus be separated from natural gas. Ethane and methane constituents the major part of natural gas. Chemical Formula of Ethane: C2H6. Your email address will not be published. The economic viability of this process may rely on the low cost of ethane near Saudi oil fields, and it may not be competitive with methanol carbonylation elsewhere in the world. The chemical or molecular formula of ethane is-. It has a molecular weight of 30.07 g/mol and is the second simplest organic compound after methane. Ethane can be formed from the electrolysis of acetate salts:[citation needed], 2 CH3COONa + 2 H2O → C2H6 + 2 CO2 + H2 + 2 NaOH. [29], Although ethane is a greenhouse gas, it is much less abundant than methane, has a lifetime of only a few months compared to over a decade,[30] and is also less efficient at absorbing radiation relative to mass. [35], This article is about the chemical compound. The complete combustion of ethane releases 1559.7 kJ/mol, or 51.9 kJ/g, of heat, and produces carbon dioxide and water according to the chemical equation. Ethane. Ethane formula is given and explained in this article. [28] In this form, the positions of the hydrogen atoms are not fixed; the molecules may rotate freely around the long axis. Ethane is favored for ethene production because the steam cracking of ethane is fairly selective for ethene, while the steam cracking of heavier hydrocarbons yields a product mixture poorer in ethene and richer in heavier alkenes (olefins), such as propene (propylene) and butadiene, and in aromatic hydrocarbons. Some minor products in the incomplete combustion of ethane include acetaldehyde, methane, methanol, and ethanol. A thin film of water, quickly immersed in liquid ethane at −150 °C or colder, freezes too quickly for water to crystallize.

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