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词汇 tetrafluoroethylene
释义

Definition of tetrafluoroethylene in English:

tetrafluoroethylene

nounˌtɛtrəˌfloːrəʊˈɛθɪliːnˌtɛtrəˌflʊərəʊˈɛθɪliːnˌtetrəˌflo͝orōˈeTHəlēn
mass nounChemistry
  • A dense colourless gas which is polymerized to make plastics such as polytetrafluoroethylene.

    〔化〕四氟乙烯

    Chemical formula: F₂CCF₂

    Example sentencesExamples
    • The material safety data sheet for the mold-release spray indicated the presence of a small amount (less than 1%) of tetrafluoroethylene, a fluorocarbon monomer.
    • The pyrolysis of tetrafluoroethylene was studied in the temperature and pressure range 300 to 455C and 25 to 760 torr.
    • Tetrafluoroethylene is listed in the 9th Report as "reasonably anticipated to be a human carcinogen."
    • The report states the listing is based on findings from laboratory animal studies of tetrafluoroethylene in which cancer was observed in multiple organs of multiple species following long-term inhalation exposures.
    • The architects considered many options for the roof materials and finally chose an ultra-violet-stable fluoropolymer, ethylene tetrafluoroethylene, welded into cushions.

Definition of tetrafluoroethylene in US English:

tetrafluoroethylene

nounˌtetrəˌflo͝orōˈeTHəlēn
Chemistry
  • A dense colorless gas which is polymerized to make plastics such as polytetrafluoroethylene.

    〔化〕四氟乙烯

    Chemical formula: F₂CCF₂

    Example sentencesExamples
    • The report states the listing is based on findings from laboratory animal studies of tetrafluoroethylene in which cancer was observed in multiple organs of multiple species following long-term inhalation exposures.
    • Tetrafluoroethylene is listed in the 9th Report as "reasonably anticipated to be a human carcinogen."
    • The pyrolysis of tetrafluoroethylene was studied in the temperature and pressure range 300 to 455C and 25 to 760 torr.
    • The architects considered many options for the roof materials and finally chose an ultra-violet-stable fluoropolymer, ethylene tetrafluoroethylene, welded into cushions.
    • The material safety data sheet for the mold-release spray indicated the presence of a small amount (less than 1%) of tetrafluoroethylene, a fluorocarbon monomer.
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