Definition of ketone in English:

ketone

noun

Chemistry
  • An organic compound containing a carbonyl group CO bonded to two hydrocarbon groups, made by oxidizing secondary alcohols. The simplest such compound is acetone.

    • ‘Secondary alcohols can be readily recovered from ketones by breaking the double bond between the oxygen and carbon and adding hydrogen.’
    • ‘Aliphatic and aromatic hydrocarbons, ketones, ethers, glycols and higher alcohols are not corrosive to magnesium and its alloys.’
    • ‘Low molecular weight aldehydes and ketones are soluble in water because the carbonyl oxygen atom allows the molecules to form strong hydrogen bonds with the molecules of water.’
    • ‘Over time, however, it oxidizes and chemically degrades to form alcohols, ketones, aldehydes, acids and esters.’
    • ‘In this reaction, an ester joins with another ester, a ketone, or a nitrile.’

Origin

Mid 19th century: from German Keton, alteration of Aketon acetone.

Pronunciation:

ketone

/ˈkiːtəʊn/