hexachlorobenzene


Also found in: Acronyms, Encyclopedia, Wikipedia.
Related to hexachlorobenzene: Hexachlorobutadiene

hex·a·chlor·o·ben·zene

 (hĕk′sə-klôr′ō-bĕn′zēn′)
n.
A white crystalline benzene derivative, C6Cl6, formerly used as a fungicide to control bunt. Its use in the United States was banned in 1965 due to high toxicity and adverse environmental effects. Also called perchlorobenzene.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Mentioned in ?
References in periodicals archive ?
In the present study, AdH and PRLOMA cell cultures were first treated for 60 minutes with chlorobenzene (dClB = 0.1 ng/ml; chlorobenzene mix (mClB) = 0.1 ng/ml; hexachlorobenzene and 1,2,4-trichlorobenzene 1:1) and with urons (PU: [10.sup.-6] M, MU: [10.sup.-6] M, DU: [10.sup.-6] M).
Note: DDT, dichloro-diphenyl-trichloroethane; HCB, hexachlorobenzene; HCH, hexachlorocyclohexane.
The method was optimized for determining the selected organic pesticides and PCBs (p,p'-DDD, o,p'-DDD, p,p'-DDE, o,p'-DDE, p,p'-DDT, o,p'-DDT, [alpha]-HCH, [beta]-HCH, [gamma]-HCH, hexachlorobenzene, pentachlorobenzene, PCB-28, PCB-52; PCB-101; PCB-118, PCB-138, PCB-153, and PCB-180).
They calculated seepage velocity and determined that chemicals would trickle down to groundwater in five years, but hexachlorobenzene had been seeping for decades.
This means that some organic substances like fat molecules, hexachlorobenzene and naphthalene are decomposed by this plant.
The military admitted to only two small test sprayings sponsored by the US military, but documents show that it sprayed millions of kilograms of defoliants, leaving tetrachlorodioxin, hexachlorobenzene and nitrosamines as nasty and persistent residues.
According to Ngwezi, the group of chemicals consists of a mixture of organic compounds and metals namely: benzene, butadiene, carbon disulphide, chloroform, ethylene oxide, hexachlorobenzene, tetrachloroethane, methanol, sulphur dioxide, toluene, lead, mercury and cadmium.
Another significant finding in the independent experts' report is that the detection of a poisonous chemical named Hexachlorobenzene (HCB), which can be seen in the ATK's raw data, was excluded in the final report.
Affected sources are those facilities that generate or produce the following HAPs of concern above the OSHA thresholds: 1,3-butadiene, 1,3-dichloropropene, acetaldehyde, chloroform, ethylene dichloride, hexachlorobenzene, methylene chloride, quinoline, hydrazine, and compounds of arsenic, cadmium, chromium, lead, manganese, and nickel.
Compounds including hexachlorobenzene, DDT, and PCBs were produced to meet industrial needs.
Therefore, the objective of this laboratory-scale study was to investigate the effect of ultrasound and various experimental conditions on clayey soils contaminated with three persistent organic compounds: hexachlorobenzene (HCB), phenanthrene (PHE) and fluoranthene (FLU).