Information om | Engelska ordet XYLENES

Exempel på hur man kan använda XYLENES i en mening

• It is also generated by methylation of toluene and xylenes and the disproportionation of xylene over aluminosilicate catalysts.
• Potentially harmful components of this coal tar, in particular polycyclic aromatic hydrocarbons and BTEX (benzene, toluene, ethylbenzene, and xylenes), have been detected in the soil and groundwater.
• Chemicals that occur in TPH include hexane, benzene, toluene, xylenes, naphthalene, and fluorene, other constituents of gasoline, jet fuels, mineral oils, and of other petroleum products.
• These hydrocarbons include hexane, heptane, isooctane (CN 2901 10 for most saturated acyclic hydrocarbons), petroleum ether (CN 2710 12 25), cyclohexane (CN 2902 11), benzene (CN 2902 20), toluene (CN 2902 30) and xylenes (o-Xylene: CN 2902 41, m-Xylene: CN 2902 42, p-Xylene: CN 2902 43, and a mix of these isomers: CN 2902 44), among others.
• Soil contamination by asbestos, lead and polycyclic aromatic hydrocarbons (PAHs) and groundwater contamination by lead, benzene, toluene, ethylbenzene and xylenes.
• The major contaminants found in the waste and groundwater coming in contact with the waste were THF, benzene, ethylbenzene, toluene, xylenes, various semivolatile organic chemicals, barium, lead, and mercury.
• The remediation of certain organic substances such as chlorinated solvents (trichloroethene and tetrachloroethene), and gasoline-related compounds (benzene, toluene, ethylbenzene, MTBE, and xylenes) by ISCO is effective.
• It may also be produced by methylation of toluene, xylenes and the trimethylbenzenes hemimellitene and pseudocumene.
• Primary VOC pollutants found in groundwater include aromatic hydrocarbons such as BTEX compounds (benzene, toluene, ethylbenzene and xylenes), and chlorinated solvents including tetrachloroethylene (PCE), trichloroethylene (TCE), and vinyl chloride (VC).
• The PX facility was originally designed to turn heavy naphtha feedstock into PX by "aromizing" or mixed aromatics production, paraxylene purification, C8 aromatics isomerization (xylenes and ethylbenzene) and aromatics transalkylation.
• Groundwater, waste, and surface water contaminants included, but are not limited to benzene, chloroform, ethyl benzene, methylene chloride, dichlorobenzene, dichloromethane, methyl phenol, trichloroethane, toluene, and xylenes.
• Naphthols, xylenes, and cis- and trans- fatty acids are compounds that are prohibitively difficult to distinguish according to their electron ionization mass spectral profiles.
• Exceedances were also reported for benzene at 7 sites, for ethylbenzene at 7 sites, and for total xylenes, m,p-xylenes, and for 1,2,4-trimethylbenzene at two sites.

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