What is the chemical formula for methane?
"does not exhibit any anomalous effects attributed to hydrogen bonding, and so its properties conform well to the prevailing trend of heavier group 14 hydrides. This series has the chemical formula XH. Ethane is commonly found alongside methane in natural gas. The other hydrides are even less stable than the tetrahydrides. All straight-chain saturated group 14 hydrides follow the formula XH, the same formula for the alkanes. Many other group 14 hydrides are known. Carbon forms a huge variety of hydrocarbons (with propane and butane following methane and ethane among the alkanes, but also including alkenes, alkynes, cyclic and branched"
"Methanium In chemistry, methanium is a complex positive ion with formula [], namely a molecule with one carbon atom bonded to three hydrogen atoms and one hydrogen molecule, bearing a +1 electric charge. It is a superacid and one of the onium ions, indeed the simplest carbonium ion. Methanium can be produced in the laboratory as a rarefied gas or as a dilute species in superacids. It was prepared for the first time in 1950 and published in 1952 by Victor Talrose and his assistant Anna Konstantinovna Lyubimova. It occurs as an intermediate species in chemical reactions. The methanium ion"
"so. Methyl iodide Methyl iodide, also called iodomethane, and commonly abbreviated ""MeI"", is the chemical compound with the formula CHI. It is a dense, colorless, volatile liquid. In terms of chemical structure, it is related to methane by replacement of one hydrogen atom by an atom of iodine. It is naturally emitted by rice plantations in small amounts. It is also produced in vast quantities estimated to be greater than 214,000 tons annually by algae and kelp in the world's temperate oceans, and in lesser amounts on land by terrestrial fungi and bacteria. It is used in organic synthesis as"
"Methyl iodide Methyl iodide, also called iodomethane, and commonly abbreviated ""MeI"", is the chemical compound with the formula CHI. It is a dense, colorless, volatile liquid. In terms of chemical structure, it is related to methane by replacement of one hydrogen atom by an atom of iodine. It is naturally emitted by rice plantations in small amounts. It is also produced in vast quantities estimated to be greater than 214,000 tons annually by algae and kelp in the world's temperate oceans, and in lesser amounts on land by terrestrial fungi and bacteria. It is used in organic synthesis as a"
"Trimethylenemethane Trimethylenemethane (often abbreviated TMM) is a chemical compound with formula . It is a neutral free molecule with two unsatisfied valence bonds, and is therefore a highly reactive free radical. Formally, it can be viewed as an isobutylene molecule with two hydrogen atoms removed from the terminal methyl groups. The electronic structure of trimethylenemethane was discussed in 1948. It is a neutral four-carbon molecule containing four pi molecular orbitals. When trapped in a solid matrix at about 90 K, the six hydrogen atoms of the molecule are equivalent. Thus, it can be described either as zwitterion, or as the"
"undertaking the work, saying: ""It is all about the challenge and the possibility to astonish chemists about what can be possible."" Hexamethylbenzene Hexamethylbenzene, also known as mellitene, is a hydrocarbon with the molecular formula CH and the condensed structural formula C(CH). It is an aromatic compound and a derivative of benzene, where benzene's six hydrogen atoms have each been replaced by a methyl group. In 1929 Kathleen Lonsdale reported the crystal structure of hexamethylbenzene, demonstrating that the central ring is hexagonal and flat and thereby ending an ongoing debate about the physical parameters of the benzene system. This was a"
"very strong acids, such as fluoroantimonic acid (antimony pentafluoride in hydrogen fluoride HF). At about 2 Torr of pressure and ambient temperature, the methane ion will react with neutral methane to yield methanium and a methyl radical: The cations obtained by reaction of methane with + HF are stabilized by interactions with the HF molecules. At low pressures (around 1 mmHg) and ambient temperatures, methanium is unreactive towards neutral methane. Methanium In chemistry, methanium is a complex positive ion with formula [], namely a molecule with one carbon atom bonded to three hydrogen atoms and one hydrogen molecule, bearing a"
"Methylamine Methylamine is an organic compound with a formula of CHNH. This colorless gas is a derivative of ammonia, but with one hydrogen atom being replaced by a methyl group. It is the simplest primary amine. It is sold as a solution in methanol, ethanol, tetrahydrofuran, or water, or as the anhydrous gas in pressurized metal containers. Industrially, methylamine is transported in its anhydrous form in pressurized railcars and tank trailers. It has a strong odor similar to fish. Methylamine is used as a building block for the synthesis of many other commercially available compounds. Methylamine is prepared commercially by"
"Hexamethylbenzene Hexamethylbenzene, also known as mellitene, is a hydrocarbon with the molecular formula CH and the condensed structural formula C(CH). It is an aromatic compound and a derivative of benzene, where benzene's six hydrogen atoms have each been replaced by a methyl group. In 1929 Kathleen Lonsdale reported the crystal structure of hexamethylbenzene, demonstrating that the central ring is hexagonal and flat and thereby ending an ongoing debate about the physical parameters of the benzene system. This was a historically significant result, both for the field of X-ray crystallography and for understanding aromaticity. The compound can be prepared by reacting"
"molecular formula CH. Methane is more easily stored and transported than hydrogen. Storage and combustion infrastructure (pipelines, gasometers, power plants) are mature. Synthetic natural gas (syngas or SNG) can be created in a multi-step process, starting with hydrogen and oxygen. Hydrogen is then reacted with carbon dioxide in a Sabatier process, producing methane and water. Methane can be stored and later used to produce electricity. The resulting water is recycled, reducing the need for water. In the electrolysis stage oxygen is stored for methane combustion in a pure oxygen environment at an adjacent power plant, eliminating nitrogen oxides. Methane combustion"
"Methyl diethanolamine Methyl diethanolamine, also known as ""N""-methyl diethanolamine and more commonly as MDEA, is the organic compound with the formula CHN(CHOH). It is a, colorless liquid with an ammonia odor. It is miscible with water, alcohol and benzene. A tertiary amine, it is widely used as a sweetening agent in chemical, oil refinery, syngas production and natural gas. Similar compounds are monoethanolamine (MEA), a primary amine, and diethanolamine (DEA), a secondary amine, both of which are also used for amine gas treating. MDEA's defining characteristic when compared to these other amines is its ability to preferentially remove HS (and"
"Methanol Methanol, also known as methyl alcohol among others, is a chemical with the formula CHOH (a methyl group linked to a hydroxyl group, often abbreviated MeOH). Methanol acquired the name wood alcohol because it was once produced chiefly by the destructive distillation of wood. Today, methanol is mainly produced industrially by hydrogenation of carbon monoxide. Methanol is the simplest alcohol, consisting of a methyl group linked to a hydroxyl group. It is a light, volatile, colorless, flammable liquid with a distinctive odor similar to that of ethanol (drinking alcohol). Methanol is however far more toxic than ethanol. At room"
"Methylene (compound) Methylene (systematically named methylidene, and dihydridocarbon), also called carbene is an organic compound with the chemical formula (also written ). It is a colourless gas that fluoresces in the mid-infrared range, and only persists in dilution, or as an adduct. Methylene is the simplest carbene. It is usually detected only at very low pressures, very low temperatures, or as a short-lived intermediate in chemical reactions. The trivial name ""carbene"" is the preferred IUPAC name. The systematic names ""methylidene"" and ""dihydridocarbon"", valid IUPAC names, are constructed according to the substitutive and additive nomenclatures, respectively. ""Methylidene"" is viewed as methane"
"Ethane Ethane ( or ) is an organic chemical compound with chemical formula . At standard temperature and pressure, ethane is a colorless, odorless gas. Like many hydrocarbons, ethane is isolated on an industrial scale from natural gas and as a petrochemical by-product of petroleum refining. Its chief use is as feedstock for ethylene production. Related compounds may be formed by replacing a hydrogen atom with another functional group; the ethane moiety is called an ethyl group. For example, an ethyl group linked to a hydroxyl group yields ethanol, the alcohol in beverages. Ethane was first synthesised in 1834 by"
"Methylidenecarbene Methylidenecarbene (systematically named λ-ethene and dihydrido-1κ""H""-dicarbon(""C""—""C"")) is an organic compound with the chemical formula (also written [] or ). It is a metastable proton tautomer of acetylene, which only persists as an adduct. It is a colourless gas that phosphoresces in the far-infrared range. It is the simplest unsaturated carbene. The systematic names ""λ-ethene"", and ""dihydrido-1κH-dicarbon(C—C)"", valid IUPAC names, are constructed according to the substitutive and additive nomenclatures, respectively. In appropriate contexts, methylidenecarbene can be viewed as ethene with two hydrogen atoms removed, or as ethane with four hydrogens removed; and as such, ""ethen-1-ylidene"" (or ""vinylidene"") or ""ethane-1-diylidene"", respectively,"
"in about 1840 by back-formation from ""methylene"", and was then applied to describe ""methyl alcohol"" (which since 1892 is called ""methanol""). ""Methyl"" is the IUPAC nomenclature of organic chemistry term for an alkane (or alkyl) molecule, using the prefix ""meth-"" to indicate the presence of a single carbon. Methyl group A methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms — CH. In formulas, the group is often abbreviated Me. Such hydrocarbon groups occur in many organic compounds. It is a very stable group in most molecules. While the methyl group is"
"the hidrocarbon mixture obtained by condensation of methanol at 200 °C with zinc iodide catalyst (the main component being the isomer 2,2,3-trimethylbutane, obtained in almost 50% yield). 2,3-Dimethylpentane 2,3-Dimethylpentane is an organic compound of carbon and hydrogen with formula , more precisely ––––: a molecule of pentane with methyl groups – replacing hydrogen atoms on carbon atoms 2 and 3. It is an alkane (""paraffin"" in older nomenclature), a fully saturated hydrocarbon; specifically, one of the isomers of heptane. Like typical alkanes, it is a colorless flammable compound; under common ambient conditions, it is a mobile liquid, less dense than"
"amounts: even at low temperatures, synthesis methods that yield the other MH compounds fail to give PbH. No other plumbanes are known. Compounds containing hydrogen and multiple group 14 elements are known, one of the most famous of these being tetraethyllead. Group 14 hydride Group 14 hydrides are chemical compounds composed of hydrogen atoms and carbon group atoms (the elements of group 14 are carbon, silicon, germanium, tin, and lead). The tetrahydride series has the chemical formula XH, with X representing any of the carbon family. Methane is commonly the result of the decomposition of organic matter and is a"
"[3+2] cycloaddition of trimethylenemethane. Trimethylenemethane Trimethylenemethane (often abbreviated TMM) is a chemical compound with formula . It is a neutral free molecule with two unsatisfied valence bonds, and is therefore a highly reactive free radical. Formally, it can be viewed as an isobutylene molecule with two hydrogen atoms removed from the terminal methyl groups. The electronic structure of trimethylenemethane was discussed in 1948. It is a neutral four-carbon molecule containing four pi molecular orbitals. When trapped in a solid matrix at about 90 K, the six hydrogen atoms of the molecule are equivalent. Thus, it can be described either as"
"Triphenylmethane Triphenylmethane, or triphenyl methane, is the hydrocarbon with the formula (CH)CH. This colorless solid is soluble in nonpolar organic solvents and not in water. Triphenylmethane is the basic skeleton of many synthetic dyes called triarylmethane dyes, many of them are pH indicators, and some display fluorescence. A trityl group in organic chemistry is a triphenylmethyl group PhC, e.g. triphenylmethyl chloride (trityl chloride) and the triphenylmethyl radical (trityl radical). Triphenylmethane was first synthesized in 1872 by the German chemist August Kekulé and his Belgian student Antoine Paul Nicolas Franchimont (1844–1919) by heating diphenylmercury (Hg(CH), ""Quecksilberdiphenyl"") with benzal chloride (CHCHCl, ""Benzylenchlorid"")."
"is a mixture of copper and zinc oxides, supported on alumina, as first used by ICI in 1966. At 5–10 MPa (50–100 atm) and , the reaction is characterized by high selectivity (>99.8%): The production of synthesis gas from methane produces three moles of hydrogen for every mole of carbon monoxide, whereas the synthesis consumes only two moles of hydrogen gas per mole of carbon monoxide. One way of dealing with the excess hydrogen is to inject carbon dioxide into the methanol synthesis reactor, where it, too, reacts to form methanol according to the equation: In terms of mechanism, the"
"the sea or of a lake unless it is bound in place by being formed in or anchored to sediment. One litre of fully saturated methane clathrate solid would therefore contain about 120 grams of methane (or around 169 litres of methane gas at 0 °C and 1 atm), or one cubic metre of methane clathrate releases about 160 cubic metres of gas. Methane forms a structure I hydrate with two dodecahedral (12 vertices, thus 12 water molecules) and six tetradecahedral (14 water molecules) water cages per unit cell. (Because of sharing of water molecules between cages, there are only"
"|}{\underset{\underset{\underset{| \atop \displaystyle H}{C}}-H</chem>|caption=The structural formula for butane. There are three common non-pictorial types of chemical formulas for this molecule: A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element. In empirical formulas, these proportions begin with a key element and then assign numbers of atoms of the other elements in the compound, as ratios to the key element. For molecular compounds, these ratio numbers can all be expressed as whole numbers. For example, the empirical formula of ethanol may be written CHO because the molecules of ethanol all"
"orbitals on the four hydrogen atoms. Above this energy level is a triply degenerate set of MOs that involve overlap of the 2p orbitals on carbon with various linear combinations of the 1s orbitals on hydrogen. The resulting ""three-over-one"" bonding scheme is consistent with photoelectron spectroscopic measurements. At room temperature and standard pressure, methane is a colorless, odorless gas. The familiar smell of natural gas as used in homes is achieved by the addition of an odorant, usually blends containing tert-butylthiol, as a safety measure. Methane has a boiling point of −164 °C (−257.8 °F) at a pressure of one"
"Trimethylolethane Trimethylolethane (TME) is the organic compound with the formula CHC(CHOH). This colorless solid is a triol, that is it contains three hydroxy functional groups. More specifically, it features three primary alcohol groups in a compact neopentyl structure. Its esters are known for their resistance to heat, light, hydrolysis, and oxidation. More important than TME and closely related is trimethylolpropane (TMP). Trimethylolethane is produced via a two step process, starting with the condensation reaction of propionaldehyde with formaldehyde: The second step entails a Cannizaro reaction: A few thousand tons are produced annually in this way. TME is an intermediate in"
"in the mid- to late-1990s during a period of slumping gasoline pump prices diminished interest in methanol fuels. In the early 1970s, a process was developed by Mobil for producing gasoline fuel from methanol. Between the 1960s and 1980s methanol emerged as a precursor to the feedstock chemicals acetic acid and acetic anhydride. These processes include the Monsanto acetic acid synthesis, Cativa process, and Tennessee Eastman acetic anhydride process. Methanol Methanol, also known as methyl alcohol among others, is a chemical with the formula CHOH (a methyl group linked to a hydroxyl group, often abbreviated MeOH). Methanol acquired the name"
"Methyl group A methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms — CH. In formulas, the group is often abbreviated Me. Such hydrocarbon groups occur in many organic compounds. It is a very stable group in most molecules. While the methyl group is usually part of a larger molecule, it can be found on its own in any of three forms: anion, cation or radical. The anion has eight valence electrons, the radical seven and the cation six. All three forms are highly reactive and rarely observed. The methylium cation (CH)"
"Methanethiol Methanethiol (also known as methyl mercaptan) is an organosulfur compound with the chemical formula . It is a colorless gas with a distinctive putrid smell. It is a natural substance found in the blood and brain of humans and animals, as well as in plant tissues. It is disposed of through animal feces. It also occurs naturally in certain foods, such as some nuts and cheese. It is one of the main compounds responsible for bad breath and the smell of flatus. Methanethiol is classified as a thiol and is sometimes abbreviated as MeSH. It is very flammable. The"
"Safety and Health Administration (OSHA) and National Institute for Occupational Safety and Health (NIOSH) have set occupational exposure limits at 10 ppm or 12 mg/m over an eight-hour time-weighted average. In the United States, methylamine is controlled as a List 1 precursor chemical by the Drug Enforcement Administration due to its use in the illicit production of methamphetamines. Methylamine Methylamine is an organic compound with a formula of CHNH. This colorless gas is a derivative of ammonia, but with one hydrogen atom being replaced by a methyl group. It is the simplest primary amine. It is sold as a solution"
"2014. Methanethiol Methanethiol (also known as methyl mercaptan) is an organosulfur compound with the chemical formula . It is a colorless gas with a distinctive putrid smell. It is a natural substance found in the blood and brain of humans and animals, as well as in plant tissues. It is disposed of through animal feces. It also occurs naturally in certain foods, such as some nuts and cheese. It is one of the main compounds responsible for bad breath and the smell of flatus. Methanethiol is classified as a thiol and is sometimes abbreviated as MeSH. It is very flammable."
"for methane in a clathrate is 46 water molecules per unit cell. Methane in solution has a hydration number of 20. In addition to methane, other simple molecules like ethane and carbon dioxide can also form hydrates in these extreme environments. Given the dependence on cold temperatures in keeping the hydrated methane locked away from the atmosphere, anthropogenic climate change has emerged as a possible destabilizing force to the vast reserves of clathrates. Estimates of the amount of methane locked into clathrates range from 500–2500 gigatons of carbon. Due to the flammability of methane gas, methane clathrates can burn creating"
"Group 14 hydride Group 14 hydrides are chemical compounds composed of hydrogen atoms and carbon group atoms (the elements of group 14 are carbon, silicon, germanium, tin, and lead). The tetrahydride series has the chemical formula XH, with X representing any of the carbon family. Methane is commonly the result of the decomposition of organic matter and is a greenhouse gas. The other hydrides are generally unstable, poisonous metal hydrides. They take on a pyramidal structure, and as such are not polar molecules like the other p-block hydrides. Unlike other light hydrides such as ammonia, water and hydrogen fluoride, methane"
"Dimethyl ether Dimethyl ether (DME, also known as methoxymethane) is the organic compound with the formula CHOCH, simplified to CHO. The simplest ether, it is a colorless gas that is a useful precursor to other organic compounds and an aerosol propellant that is currently being demonstrated for use in a variety of fuel applications. It is an isomer of ethanol. Approximately 50,000 tons were produced in 1985 in Western Europe by dehydration of methanol: The required methanol is obtained from synthesis gas (syngas). Other possible improvements call for a dual catalyst system that permits both methanol synthesis and dehydration in"