tetrafluoroethene


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tetrafluoroethene

(ˈtɛtrəˌflʊərəʊˈɛθiːn)
n
(Chemistry) chem a dense colourless gas that is polymerized to make polytetrafluorethene (PTFE). Formula: F2C:CF2. Also called: tetrafluoroethylene
[C20: from tetra- + fluoro- + ethene]
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Tetrafluoroethene and polyvinylidene coating can reduce the amount of extractables from stoppers, but it is not a total barrier to extractables and leachables.