Definition of dioxane in English:


(also dioxan)


mass nounChemistry
  • A colourless toxic liquid used as an organic solvent.

    • ‘Carcinogens, such as dioxane and nitrosamine, are commonly formed in synthetic concoctions and are virtually impossible for us to know about.’
    • ‘After incubation the agarose was washed successively with dioxane solution, dioxane, distilled water and ethanol.’
    • ‘In a manner similar to the UV-absorption, the excimer fluorescence emission of la [meso] in aqueous solution was affected by the presence of less-polar aprotic solvent THF or dioxane.’
    • ‘This led to hydrogen abstraction from dioxane by curcumin triplet state and the formation of the corresponding ketyl radical.’
    • ‘For Bchl and Chl dissolved in diethyl ether, toluene, acetone, ethanol and acetonitrile, the Mg atom was found to be pentacoordinated, whereas it was hexacoordinated in dioxane, tetrahydrofuran, pyridine and methanol.’


Early 20th century: from di- ‘two’ + ox- ‘oxygen’ + -an (or -ane).