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Related to biphenyls: Polybrominated biphenyls, Aroclor


 (bī-fĕn′əl, -fē′nəl)
A white or colorless crystalline compound, C12H10, used as a heat-transfer agent, in fungicides, and in organic synthesis. Also called diphenyl.


(baɪˈfɛnəl; -ˈfiː-)
1. (Elements & Compounds) a white or colourless crystalline solid used as a heat-transfer agent, as a fungicide, as an antifungal food preservative (E230) on the skins of citrus fruit, and in the manufacture of dyes, etc. Formula: C6H5C6H5
2. (Elements & Compounds) any substituted derivative of biphenyl
Also called: diphenyl


(baɪˈfɛn l, -ˈfin l)

a water-insoluble powder, C12H10, from which benzidine dyes are derived: used chiefly as a heat-transfer agent and in organic synthesis.
References in periodicals archive ?
The report also focuses on three particular environmental hazards: the health effects of climate change, lead-free drinking water and polychlorinated biphenyls, which are banned toxic chemicals that are still found in the environment.
Mashnouk signed on Tuesday a cooperation agreement with Electricite du Liban's Chairman Kamal Hayek to execute the Polychlorinated Biphenyls (POP) management in the electricity sector and implement a national strategy to get rid of the Polychlorinated biphenyls (PCBs).
Axially chiral biphenyls having conformationally restricted and unresticted cores were investigated for dipole moment at B3LYP/6-31G(d) method of DFT(density functional theory).
Project Description : Environmentally Sound Management and Disposal of Polychlorinated Biphenyls in Argentina.
Polychlorinated biphenyls (PCBs) are a family of 209 synthetic hydrocarbons once extensively used in a variety of industrial applications as coolants or lubricants.
SAN FRANCISCO -- Greater levels of polychlorinated biphenyls in the blood were associated with worse neuropsychological executive functioning in a study of 276 adults, Richard F.
However, as a new link in the Great Lakes food chain, Ricciardi worries, the fatty crustacean could boost concentrations of pollutants such as polychlorinated biphenyls in the larger fish.
The restriction of Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) Directive limits the use of lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and two polybrominated diphenyl ethers.
A new reference material (RM), RM 8504, has been prepared for use as a diluent oil with Aroclors in transformer oil Standard Reference Materials (SRMs) 3075 to 3080 and SRM 3090 when developing and validating methods for the determination of polychlorinated biphenyls (PCBs) as Aroclors in transformer oil or similar matrices.
Prior soil and sediment assessment has shown that the reserve land is heavily contaminated with pollutants such as polychlorinated biphenyls, polyaromatic hydrocarbons, hexachlorobenzene, mirex, a variety of potentially toxic metals, volatile organic compounds, phthalates, and dioxins; many of these are known or suspected endocrine disruptors.
People covet wild salmon because it is leaner, tastier and contains no color dyes and fewer cancer-causing polychlorinated biphenyls (PCBs) than its pen-raised cousin, according to Ecotrust's Salmon Nation.
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.