|
List Of Alkanes ...
The following is a list of straight-chain alkanes, the total number of isomers of each (including branched chains), and their common names, sorted by number of carbon atoms. See also * Higher alkane * List of compounds with carbon numbers 50+ References {{alkanes Alkanes Alkanes In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkane
In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single. Alkanes have the general chemical formula . The alkanes range in complexity from the simplest case of methane (), where ''n'' = 1 (sometimes called the parent molecule), to arbitrarily large and complex molecules, like hexacontane () or 4-methyl-5-(1-methylethyl) octane, an isomer of dodecane (). The International Union of Pure and Applied Chemistry (IUPAC) defines alkanes as "acyclic branched or unbranched hydrocarbons having the general formula , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms". However, some sources use the term to denote ''any'' saturated hydrocarbon, including those that are either monocyclic (i.e. the cycloalkanes) or polycycl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Undecane
Undecane (also known as hendecane) is a liquid alkane hydrocarbon with the chemical formula CH3(CH2)9CH3. It is used as a mild sex attractant for various types of moths and cockroaches, and an alert signal for a variety of ants. It has 159 isomers. Undecane may also be used as an internal standard in gas chromatography when working with other hydrocarbons. Since the boiling point of undecane (196 °C) is well known, it may be used as a comparison for retention times in a gas chromatograph for molecules whose structure has been freshly elucidated. For example, if one is working with a 50 m crosslinked methyl silicone capillary column with an oven temperature increasing slowly, beginning around 60 °C, an 11-carbon molecule like undecane may be used as an internal standard to be compared with the retention times of other 10-, 11-, or 12- carbon molecules, depending on their structures. See also * Higher alkanes * List of isomers of undecane * Cycloundecane Reference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetracosane
Tetracosane, also called ''tetrakosane'', is an alkane hydrocarbon with the structural formula H(CH2)24H. As with other alkanes, its name is derived from Greek for the number of carbon atoms, 24, in the molecule. It has 14,490,245 constitutional isomers, and 252,260,276 stereoisomers. ''n''-Tetracosane is found in mineral form, called evenkite, in the Evenki Region on Lower Tunguska River in Siberia and the Bucnik quarry near Konma in eastern Moravia, Czech Republic. Evenkite is found as colourless flakes and is reported to fluoresce yellow-orange. See also * List of alkanes The following is a list of straight-chain alkanes, the total number of isomers of each (including branched chains), and their common names, sorted by number of carbon atoms. See also * Higher alkane * List of compounds with carbon numbers 50+ ... References External linksNIST Entry Alkanes {{Hydrocarbon-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tricosane
320px Higher alkanes are alkanes with a high number of carbon atoms. It is common jargon. One definition says higher alkanes are alkanes having nine or more carbon atoms. Thus, according to this definition, nonane is the lightest higher alkane. As pure substances, higher alkanes are rarely significant, but they are major components of useful lubricants and fuels. Synthesis The preparation of specific long-chain hydrocarbons typically involves manipulations of long chain precursors or the coupling of two medium-chain components. For the first case, fatty acids can be a source of higher alkanes via decarboxylation reaction. Such processes have been investigated as a route to biodiesel. Fatty acid esters and fatty acid nitriles react with long chain Grignard reagents to give, after suitable workup, long-chain ketones. The Wolff-Kishner Reaction provides a way to remove the ketone functionality, giving long-chain hydrocarbons. Even-numbered, long-chain hydrocarbons can also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heneicosane
Heneicosane is the organic compound with the formula CH3(CH2)19CH3. It is the straight chain, saturated C21 hydrocarbon. It is a white wax. Natural occurrence Heneicosane is used as a pheromone by the queen or king termites in the species '' Reticulitermes flavipes''. It also attracts mosquitoes in the genus ''Aedes ''Aedes'' (also known as the tiger mosquito) is a genus of mosquitoes originally found in tropical and subtropical zones, but now found on all continents except Antarctica. Some species have been spread by human activity: ''Aedes albopictus'', ...'' and can be used in mosquito baits. This works in nature as the hydrocarbon is produced in the skin of the larva. A 1:100000 fraction in water is the most attractive, but if the concentration is 1:1000 then mosquitoes are repelled instead. Heneicosane is one of the major components of the safflower flower essential oil ('' Carthamus tinctorius''). All parts of the plant '' Periploca laevigata'' contain heneicosane. '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eicosane
Eicosane (alternative spellings icosane and eichosane) is an alkane with the chemical formula C20H42. It has 366,319 constitutional isomers. ''n''-Eicosane (the straight-chain structural isomer of eicosane) is the shortest compound found in paraffin waxes, used to form candles. It can be isolated from agave attenuate leaves. It is also found in Vanilla madagascariensis and Gymnodinium nagasakiense. Eicosane's size, state and chemical inactivity do not exclude it from the traits of its smaller alkane counterparts. It is a colorless or white, non-polar molecule, nearly unreactive except when it burns. It is less dense than and insoluble in water. Its non-polar trait means it can only perform weak intermolecular bonding (hydrophobic/van der Waals forces). Eicosane's phase transition at a moderate temperature makes it a candidate phase change material, or PCM, which can be used to store thermal energy and control temperature. It can be detected in the body odor of persons suffering ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nonadecane
Nonadecane is an alkane hydrocarbon with the chemical formula CH3(CH2)17CH3, simplified to carbon, C19hydrogen, H40. Occurrence in nature Nonadecane is found in ''Rosa × damascena'' (8%-15%), ''Rosa × alba'' (7%-13%) and n-Paraffin rich high altitude hybrids of both (20%-55%). See also * Rose oil * Paraffin (other), Paraffin References External links Material Safety Data Sheet for NonadecaneActivities of a Specific Chemical Query Alkanes {{organic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octadecane
Octadecane is an alkane hydrocarbon with the chemical formula CH3(CH2)16CH3. Properties Octadecane is distinguished by being the alkane In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in whi ... with the lowest carbon number that is unambiguously solid at room temperature and pressure. References External links Phytochemical and Ethnobotanical Databases Alkanes {{hydrocarbon-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heptadecane
Heptadecane is an organic compound, an alkane hydrocarbon with the chemical formula C17H36. The name may refer to any of 24894 theoretically possible structural isomers, or to a mixture thereof. The unbranched isomer is normal or ''n''-heptadecane, CH3(CH2)15CH3. In the IUPAC nomenclature, the name of this compound is simply heptadecane, since the other isomers are viewed and named as alkyl-substituted versions of smaller alkanes. The most compact and branched isomer would be tetra-''tert''-butylmethane, but its existence is believed to be impossible due to steric hindrance Steric effects arise from the spatial arrangement of atoms. When atoms come close together there is generally a rise in the energy of the molecule. Steric effects are nonbonding interactions that influence the shape ( conformation) and reactivi .... Indeed, it is believed to be the smallest "impossible" alkane. References External links List of plant species containing heptadecane Dr. Duke's Phytochem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexadecane
Hexadecane (also called cetane) is an alkane hydrocarbon with the chemical formula C16H34. Hexadecane consists of a chain of 16 carbon atoms, with three hydrogen atoms bonded to the two end carbon atoms, and two hydrogens bonded to each of the 14 other carbon atoms. Isohexadecane is a branch chained isomer of hexadecane.https://b4brands.com/resources/ingredient-directory/isohexadecane/#:~:text=Isohexadecane%20is%20a%20branched%2Dchain,that%20is%20found%20in%20petroleum. Cetane number ''Cetane'' is often used as a shorthand for cetane number, a measure of the combustion of diesel fuel. Cetane ignites very easily under compression; for this reason, it is assigned a cetane number of 100, and serves as a reference for other fuel mixtures. Hexadecyl radical Hexadecyl, or cetyl, is an alkyl radical of carbon and hydrogen derived from hexadecane, with formula C16H33 and with mass 225.433, occurring especially in cetyl alcohol. It confers strong hydrophobicity on molecules containi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pentadecane
Pentadecane is an alkane hydrocarbon with the chemical formula C15H32. It can be monoterminally oxidized Redox ( , , reduction–oxidation or oxidation–reduction) is a type of chemical reaction in which the oxidation states of the reactants change. Oxidation is the loss of electrons or an increase in the oxidation state, while reduction is ... to 1-pentadecanol. References Alkanes {{hydrocarbon-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |