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1 алициклический углеводород
алициклический углеводород
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
alicyclic hydrocarbon
A class of organic compounds containing only carbon and hydrogen atoms joined to form one or more rings and having the properties of both aliphatic and cyclic substances. (Source: MGH / RRDA)
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Русско-французский словарь нормативно-технической терминологии > алициклический углеводород
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2 полихлорированный бифенил
полихлорированный бифенил
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[ 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)
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Русско-французский словарь нормативно-технической терминологии > полихлорированный бифенил
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3 частично галогенизированные хлорфторуглероды
частично галогенизированные хлорфторуглероды
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
partially halogenated chlorofluorohydrocarbon
Hydrocarbons whose hydrogen atoms have been partially substituted with chlorine and fluorine. They are used in refrigeration, air conditioning, packaging, insulation, or as solvents and aerosol propellants. Because they are not destroyed in the lower atmosphere they drift into the upper atmosphere where their chlorine components destroy ozone. (Source: LANDY)
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Русско-французский словарь нормативно-технической терминологии > частично галогенизированные хлорфторуглероды
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4 алифатическое соединение
алифатическое соединение
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
aliphatic compound
Any organic compound of hydrogen and carbon characterized by a straight chain of the carbon atoms. (Source: MGH)
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Русско-французский словарь нормативно-технической терминологии > алифатическое соединение
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5 галогенизированный углеводород
галогенизированный углеводород
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
halogenated hydrocarbon
One of a group of halogen derivatives of organic hydrogen and carbon containing compounds; the group includes monohalogen compounds (alkyl or aryl halides) and polyhalogen compounds that contain the same or different halogen atoms. (Source: MGH)
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Русско-французский словарь нормативно-технической терминологии > галогенизированный углеводород
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6 химический элемент
химический элемент
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
chemical element
A substance made up of atoms with the same atomic number; common examples are hydrogen, gold, and iron. (Source: MGH)
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Русско-французский словарь нормативно-технической терминологии > химический элемент
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