polychlorinated biphenyl

polychlorinated biphenyl
  1. полихлорированный бифенил

 

полихлорированный бифенил

[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]

EN

polychlorinated biphenyl
PCBs are a family of chemical compounds which do not exist in nature but which are man-made. Commercial mixtures are clear, pale yellow liquids, manufactured by the replacement of hydrogen atoms on the biphenyl molecule by chlorine. Because of their physical properties, PCBs are commonly found in electrical equipment which requires dielectric fluid such as power transformers and capacitors, as well as in hydraulic machinery, vacuum pumps, compressors and heat-exchanger fluids. Other uses include: lubricants, fluorescent light ballasts, paints, glues, waxes, carbonless copy paper, inks including newspapers, dust-control agents for dirt roads, solvents for spreading insecticides, cutting oils. PCBs are stable compounds and although they are no longer manufactured they are extremely persistent and remain in huge quantities in the atmosphere and in landfill sites. They are not water-soluble and float on the surface of water where they are eaten by aquatic animals and so enter the food chain. PCBs are fat-soluble, and are therefore easy to take into the system, but difficult to excrete. (Source: PZ / PHC)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]

Тематики

  • охрана окружающей среды

EN

  • polychlorinated biphenyl

DE

  • Polychlorbiphenyl

FR

  • polychlorobiphényle


Англо-русский словарь нормативно-технической терминологии. . 2015.

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Смотреть что такое "polychlorinated biphenyl" в других словарях:

  • polychlorinated biphenyl — [päl΄i klôr′ə nāt əd bī΄fen′əl, päl΄i klôr′ə nāt ed bī΄fē′nəl] n. PCB …   English World dictionary

  • Polychlorinated biphenyl — PCBs redirects here. For printed circuit boards, see printed circuit board. Labelling transformers containing PCBs …   Wikipedia

  • polychlorinated biphenyl — poly·chlo·ri·nat·ed biphenyl .päl i klōr ə .nāt əd , klȯr n any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, have various industrial applications, and are toxic environmental pollutants which tend …   Medical dictionary

  • polychlorinated biphenyl — noun Date: 1962 any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, have various industrial applications, and are toxic environmental pollutants which tend to accumulate in animal tissues called also… …   New Collegiate Dictionary

  • polychlorinated biphenyl — /pol ee klawr euh nay tid, klohr /, Chem. See PCB. [1960 65; POLY + CHLORINATED] * * * ▪ chemical compound       any of a class of organohalogen compounds prepared by the reaction of chlorine with biphenyl. A typical mixture of PCBs may contain… …   Universalium

  • polychlorinated biphenyl — noun A class of aromatic organic compounds formed by the chlorination of the hydrocarbon biphenyl; they have many industrial applications but are damaging to the environment …   Wiktionary

  • polychlorinated biphenyl — ¦pälē, lə̇ˌ… noun Etymology: poly + chlorinated, past participle of chlorinate : any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, have various industrial applications, and are toxic environmental… …   Useful english dictionary

  • polychlorinated biphenyl — noun Chemistry any of a class of toxic chlorinated aromatic compounds, formed as waste in some industrial processes …   English new terms dictionary

  • polychlorinated biphenyl — /pɒliˌklɒrəneɪtəd baɪˈfɛnəl/ (say polee.kloruhnaytuhd buy fenuhl) noun → PCB1 …  

  • polychlorinated biphenyl — (PCB) Dielectric fluid used in capacitors and transformers that is very toxic. Use of PCB in transformers and capacitors is strictly regulated by the Environmental Protection Agency …   Dictionary of automotive terms

  • Polychlorinated dibenzodioxins — See also: 2,3,7,8 Tetrachlorodibenzodioxin, Dioxins and dioxin like compounds, and 1,4 Dioxin General structure of PCDDs where n and m can range from 0 to 4 Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of organic… …   Wikipedia


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