diphenyl


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Related to diphenyl: diphenyl carbonate, diphenyl ether, Diphenyl ketone, diphenyl oxide

diphenyl

[dī′fen·əl]
(organic chemistry)
References in periodicals archive ?
Polybrominated diphenyl ethers: a case study for using biomonitoring data to address risk assessment questions.
A review on human exposure to brominated flame retardants--particularly polybrominated diphenyl ethers.
It was developed as an alternative to decabromodiphenyl oxide (DBDPO) for ABS and HIPS because it does not form diphenyl oxides and furans.
A boxcar loaded with explosives also was removed from the area, and another tank car containing MDI, methylene diphenyl diisocyanate, has been moved and is being neutralized and unloaded today.
Cytotoxicity and gene expression profiling of two hydroxylated polybrominated diphenyl ethers in human H295R adrenocortical carcinoma cells.
Researchers wanted to measure how bloodborne concentrations of polybrominated diphenyl ethers (PBDEs)--ubiquitous and potentially toxic flame retardants--changed during month-long respites from work.
Reimann, BASF; "Application of EPA air contamination models to occupational exposures: Assessment of MDI concentration associated with rooftop spray foam applications," Paulette Middleton, Panorama Pathways; Chris Cleet, API; and Fran Lichtenberg, consultant; "Exposure of workers spraying housing insulation containing methylene diphenyl diisocyanate (MDI)," Jacques Lesage and Jennifer Stanley, IRSST; and William Karoly, Huntsman Polyurethanes; and "API product stewardship communication tools help you help yourself," William Robert, BASF, and Theresa Maene, Dow Chemical.
Recently slated for bans in Europe and California, two classes of these compounds--mixes of polybrominated diphenyl ethers (PBDEs)--have had a low profile within the agency.
Dow is also further increasing prices for Voranol, Voralux, and Specflex polyether and copolymer polyols; Isonate pure methylene diphenyl diisocyanate (MDI); and PAPI polymeric methylene diphenyl diisocyanate (PMDI) by $0.
Not only does the company's portfolio of switch products include lead-free devices, but also devices that contain no cadmium, mercury or other toxic substances, such as hexavalent chromium, polybrominated biphenyls or polybromated diphenyl ethers.
Coming in July, EU Directive 2002/95/EC, "Restriction of Hazardous Substances" (RollS), will limit those metals plus polybrominated biphenyls and polybrominated diphenyl ethers in waste E/E equipment to 100 ppm for cadmium and 1000 ppm for each of the other substances.