diphenyl


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biphenyl

 [bi-fen´il]
polybrominated biphenyl (PBB) any of various brominated derivatives of biphenyl; uses and toxic hazards are similar to those of polychlorinated biphenyls. They typically are deposited in body fat stores and are rarely mobilized except through lactation.
polychlorinated biphenyl (PCB) any of various chlorinated derivatives of biphenyl, toxic and carcinogenic nonbiodegradable compounds used as heat-transfer agents and electrical insulators; they are readily absorbed from the gastrointestinal tract, and those with a lower percentage of chlorine are associated with a higher toxicity but are more readily excreted.

di·phen·yl

(dī-fen'il),
Colorless liquid; used as heat transfer agent, frequently as polychlorinated biphenyls (PCBs); as fungistat for oranges (applied to inside of shipping container or wrappers); and in organic syntheses. Produces convulsions and central nervous system depression.
Synonym(s): biphenyl, phenylbenzene

diphenyl

/di·phen·yl/ (di-fen´il) a toxic compound comprising two linked benzene rings, used as a fungistat in containers for shipping citrus fruits.

di·phen·yl

(dī-fen'il)
Colorless liquid that is used as a heat transfer agent, frequently as a polychlorinated biphenyl (PCB); used as fungistat for oranges and in organic syntheses. Produces convulsions and central nervous system depression.
Synonym(s): biphenyl, phenylbenzene.
References in periodicals archive ?
Obtain up-to-date information on the United Kingdom's Methylene Diphenyl Diisocyanate (MDI) industry
Obtain up-to-date information on Taiwan's Methylene Diphenyl Diisocyanate (MDI) industry
However, when methanol was used as the organic solvent, its sorption strength decreased as the stationary phase changed from diphenyl to C3 to CN to C8 and its chromatographic behaviour was similar to that of cytochrome c on all used stationary phases.
The devices are also free of cadmium, mercury, and other toxic substances such as hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers.
By comparison, the FDA fails to take action on foodstuffs that contain surprising amounts of the persistent flame retardant family, polybrominated diphenyl ethers (PBDEs) in fat content, This is nothing short of profit protection and corporate political contributions driving decisions that fly in the face of the public interest.
Electronics companies began using polybrominated diphenyl (PBDEs) and other flame retardants in the 1970s,arguing that the toxins prevent fires and cannot escape from plastic casings.
While the toxic heavy metal mercury already has a record for contaminating seafood (see "Heavy Metal Harm," cover story, May/June 2002), a new class of chemicals has emerged as a cause for concern: polybrominated diphenyl ethers (PBDEs).
Four 45-gallon drums of diphenyl methane were punctured and the substance was poured over the rubberised surface of the playground.
com/research/2klw6c/methylene) has announced the addition of GlobalData's new report "Methylene Diphenyl Diisocyanate (MDI) Industry Outlook in Argentina to 2016 - Market Size, Price Trends and Trade Balance" to their offering.
The European Commission has published Commission Delegated Directive 2016/585/EU amending Commission Directive 2011/65/EU which prohibits the use of lead, cadmium, hexavalent chromium, and polybrominated diphenyl ethers (PBDE) in electrical and electronic equipment placed on the market.
GlobalData's new report, "Methylene Diphenyl Diisocyanate (MDI) Industry Outlook in Italy to 2019 - Market Size, Price Trends and Trade Balance", provides in-depth coverage of Italy's Methylene Diphenyl Diisocyanate (MDI) industry and presents major market trends.