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2 thoradh

  1. INDUSTRY|chemistry|chemical compound

    #622339

    IATE #1206643
    gliocól poileitiléine Tagairt Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Polyaethylenglykol | PEG | Polyethylenglykol
    de
    Sainmhíniú je nach Kettenlänge flüssiges oder festes, chemisch inertes, wasserlösliches und nicht-toxisches Polymer mit der allgemeinen Summenformel C2nH4n+2On+1 Tagairt "Chemielexikon Chemie.de, http://www.chemie.de/lexikon/Polyethylenglykol.html (9.1.2012)"
    polyethylene glycol | PEG | poly(ethylene glycol) | polyglycol
    en
    Sainmhíniú condensation polymer of ethylene oxide and water with the general formula H(OCH 2CH 2) nOH, where n is the average number of repeating oxyethylene groups, typically from 4 to about 180 Tagairt "Chemicalland21.com, POLYETHYLENE GLYCOL (31.10.2019)"
    Nóta The low molecular weight members from n=2 to n=4 are diethylene glycol, triethylene glycol and tetraethylene glycol respectively, which are produced as pure compounds. The low molecular weight compounds up to 700 are colourless, odourless viscous liquids with a freezing point from -10 C (diethylene gycol), while polymerized compounds with higher molecular weight than 1,000 are waxlike solids with melting point up to 67 C for n 180.