Undecane


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Related to Undecane: Tridecane, Dodecane

Un´de`cane


n.1.(Chem.) A liquid hydrocarbon, C11H24, of the methane series, found in petroleum; - so called from its containing eleven carbon atoms in the molecule.
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Fluids from [Idef.sup.X], Fati Ufu, and Tutafi shared some similarities: a strong enrichment in decane and undecane, alike concentrations in PAHs, and the presence of significant amounts of xylene.
Alginate, also a carbohydrate, showed consistently small amounts of undecane and dodecane released upon degradation (Fig.
Category Main components Aromatic hydrocarbons Ethylbenzene, 1,3-dimethyl benzene, 1-methylene lH-indene, butylated hydroxy toluene, 1-methylnaphthalene, 2-methylnaphthalene Alkanes Undecane, dodecane, tridecane, tetradecane, pentadecane, hexadecane, 2,6,10-trimethyl dodecyl, 4-(prop-2 loxypropangl)octane, 2,6-dimethyl decane Alkenes 2-Propenylidene cyclobutene, cedrene, Seychelles alkene Aldehydes and ketones Hexanal, nonanal, benzaldehyde, acetophenone, undecanal Esters Butyl butyrate, 3-methyl heptanol acetate, 2 acrylic acid 2 ethylhexyl ester, oxalic acid acrylate Others TV-butyl ether
Heavier unsaturated hydrocarbons in paraffin series, nonane, decane, undecane, and dodecane, may occur in gasoline and in the exhausts--most often the nonane--but they have dominant sources in releases from consumer products (mainly from industrial synthetic building materials and housing equipment [35]), from the industrial waste streams and the contaminated urban soil [36-40], though environmental behavior of the vapors from the subsurface gasoline contamination of soil and groundwater is not a well understood phenomenon.
The highest concentrations of tributyl phosphates, limonene, m+p-xylene, and undecane were detected during first engine start, while that for tetrachloroethylene (TCE) occurred at the instant when the sampling kits were opened.
Benzene, toluene, butyl acetate, ethyl benzene, rn-xylene, styrene, o-xylene, and undecane.
Among them the liquid alkanes (undecane dodecane tridecane tetradecane pentadecane hexadecane heptadecane etc.) are widely used in fuel oils and as anti-corrosive agents in lubricating oils and solid alkanes (octadecane nonadecane eicosane heneicosane tricosane tetracosane heptacosane octacosane etc.) find their use in paraffin waxes of different kinds.
The six phytoconstituents, namely, undecane, taurolidine, trehalose, hexadecanoic acid methyl ester, 9octadecenoic acid (Z)-, methyl ester, and benzaldehyde, 2nitro-, diaminomet hylidenhydrazone in stem extracts have possessed medicinal properties [26].
As standard chemicals, cholesterol, 5[alpha]-cholestane, n-alkane, undecane butanoic acid, hexanoic acid, octanoic acid, and decanoic acid were purchased from Sigma (St.
Different compounds were detected in different quantities from different sources compounds more than 10% were Toluene (63.515), Benzene1,3-dimethyl (12.589), Undecane (52.29) and Aniline, N-methyl (13.964), compounds from 1 to 10% were Ethylbenzene (2.771) and o-Xylene (3.097) whereas compounds less than 1% were Nonane (0.426), Nonane (0.168), 2-Propenoic acid (0.372), Undecane (0.082), Dodecane (0.074), Tridecane (0.077), Tetradecane (0.069), Pentadecane (0.045), Hexadecane (0.054) and Octadecane (0.031) detected in callus cultures under the influence of MBN2,3 medium.
Specific essential oil compounds of Tansy from Pancevo industrial zone were: germacrene-D, [alpha]-cadinol, longiborneol, pinocarvone, santolina alcohol, spathulenol, a-thujone and undecane (Table 2).
The concentration of the heaviest alkanes increased practically 1.5 times for undecane and dodecane.