| 释义 |
Definition of ketone in English: ketonenoun ˈkiːtəʊnˈkitoʊn Chemistry An organic compound containing a carbonyl group CO bonded to two hydrocarbon groups, made by oxidizing secondary alcohols. The simplest such compound is acetone. 〔化〕酮 Example sentencesExamples - 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.
- 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.
Derivativesadjectivekɪˈtɒnɪk Chemistry This type of reaction gives as its product a beta ketonic ester, ketone, or nitrile (depending upon the starting compounds) and an alcohol.
OriginMid 19th century: from German Keton, alteration of Aketon 'acetone'. Definition of ketone in US English: ketonenounˈkitoʊnˈkētōn Chemistry An organic compound containing a carbonyl group CO bonded to two hydrocarbon groups, made by oxidizing secondary alcohols. The simplest such compound is acetone. 〔化〕酮 Example sentencesExamples - Secondary alcohols can be readily recovered from ketones by breaking the double bond between the oxygen and carbon and adding hydrogen.
- 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.
- Aliphatic and aromatic hydrocarbons, ketones, ethers, glycols and higher alcohols are not corrosive to magnesium and its alloys.
- In this reaction, an ester joins with another ester, a ketone, or a nitrile.
- Over time, however, it oxidizes and chemically degrades to form alcohols, ketones, aldehydes, acids and esters.
OriginMid 19th century: from German Keton, alteration of Aketon ‘acetone’. |