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Xylene information


The three xylene isomers: o-xylene, m-xylene, and p-xylene

In organic chemistry, xylene or xylol (from Greek ξύλον (xylon) 'wood';[1][2] IUPAC name: dimethylbenzene) are any of three organic compounds with the formula (CH3)2C6H4. They are derived from the substitution of two hydrogen atoms with methyl groups in a benzene ring; which hydrogens are substituted determines which of three structural isomers results. It is a colorless, flammable, slightly greasy liquid of great industrial value.[3]

The mixture is referred to as both xylene and, more precisely, xylenes. Mixed xylenes refers to a mixture of the xylenes plus ethylbenzene. The four compounds have identical empirical formulas C4H5. Typically the four compounds are produced together by various catalytic reforming and pyrolysis methods.[4]

  1. ^ ξύλον. Liddell, Henry George; Scott, Robert; A Greek–English Lexicon at the Perseus Project.
  2. ^ Harper, Douglas. "xylene". Online Etymology Dictionary.
  3. ^ Cite error: The named reference Ullmann was invoked but never defined (see the help page).
  4. ^ Cannella, William J. (2000). "Xylenes and Ethylbenzene". Kirk-Othmer Encyclopedia of Chemical Technology. doi:10.1002/0471238961.2425120503011414.a01. ISBN 0471238961.

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Xylene

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In organic chemistry, xylene or xylol (from Greek ξύλον (xylon) 'wood'; IUPAC name: dimethylbenzene) are any of three organic compounds with the formula...

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Xylene cyanol

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Xylene cyanol can be used as an electrophoretic color marker, or tracking dye, to monitor the process of agarose gel electrophoresis and polyacrylamide...

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Musk xylene

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Musk xylene is a synthetic musk fragrance which mimics natural musk. It has been used as a perfume fixative in a wide variety of consumer products, and...

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Petrochemical

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(including ethylene and propylene) and aromatics (including benzene, toluene and xylene isomers). Oil refineries produce olefins and aromatics by fluid catalytic...

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Terephthalic acid

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Terephthalic acid was produced by oxidation of p-xylene with dilute nitric acid. Air oxidation of p-xylene gives p-toluic acid, which resists further air-oxidation...

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Canada balsam

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together and enclose the sample to conserve it. Canada balsam dissolved in xylene is also used for preparing slide mounts. Some workers prefer terpene resin...

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C8H10

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isomers: Cycloocta-1,3,6-triene Ethylbenzene Octatetraene Xylenes m-Xylene o-Xylene p-Xylene This set index page lists chemical structure articles associated...

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Toluene

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solvent extraction processes used for BTX aromatics (benzene, toluene, and xylene isomers). Toluene can be prepared by a variety of methods. For example,...

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Brilliant blue FCF

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Blue FCF Alzen Food Blue No. 1 Erioglaucine Eriosky blue Patent Blue AR Xylene Blue VSG C.I. 42090 CI Food Blue 2 Basacid Blue 755 Sulfacid Brilliant Blue...

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Benzene

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the xylene stream exiting the TDP unit is approximately 90% p-xylene. In some systems, even the benzene-to-xylenes ratio is modified to favor xylenes. Steam...

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Paint thinner

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solvents used as paint thinner include:[failed verification] Ethylbenzene Xylene n-Butyl acetate Butanol Exposure to vapors created by paint containing thinner...

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Dimethyl terephthalate

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methyl-esterification steps from p-xylene via methyl p-toluate (PT). The method for the production of DMT from p-xylene (PX) and methanol consists of a multistep...

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Hydrotrope

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and to be approximately an order of magnitude more effective than sodium xylene sulfonate in a classic hydrotrope assay. The hydrotrope activity of ATP...

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Parylene

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by Michael Szwarc as one of the thermal decomposition products of para-xylene H 3C−C 6H 4−CH 3 above 1000 °C. Szwarc identified para-xylylene as the precursor...

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Aromatic compound

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[citation needed] Representative arene compounds Toluene Ethylbenzene p-Xylene m-Xylene Mesitylene Durene 2-Phenylhexane Biphenyl Phenol Aniline Nitrobenzene...

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Limonene

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histopathology, D-limonene is often used as a less toxic substitute for xylene when clearing dehydrated specimens. Clearing agents are liquids miscible...

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Methylhippuric acid

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metabolites of the isomers of xylene. The presence of methylhippuric acid can be used as a biomarker to determine exposure to xylene. Hippuric acid "HIPPURIC...

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Solvent

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alcohol 0.809 1-Butanol 0.810 Diethyl ketone 0.814 1-Octanol 0.826 p-Xylene 0.861 m-Xylene 0.864 Toluene 0.867 Dimethoxyethane 0.868 Benzene 0.879 Butyl acetate...

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