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aldehyde    
n. 乙醛

乙醛

aldehyde
n 1: any of a class of highly reactive chemical compounds; used
in making resins and dyes and organic acids

Aldehyde \Al"de*hyde\ ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr.
alcohol dehydrogenatum, alcohol deprived of its hydrogen.]
1. (Chem.) A colorless, mobile, and very volatile liquid
obtained from alcohol by certain processes of oxidation.
[1913 Webster]

2. (Chem.) Any compound having the group {-CHO}. Methyl
aldehyde, the simplest aldehyde, is more commonly called
formaldehyde, {H-CHO}, and acetic aldehyde is now more
commonly called {acetaldehyde}. The higher aldehydes may
be solids. A {reducing sugar} typically contains the
aldehyde group.
[PJC]

Note: The aldehydes are intermediate between the alcohols and
acids, and differ from the alcohols in having two less
hydrogen atoms in the molecule, as common aldehyde
(called also {acetaldehyde}, {acetic aldehyde} or
{ethyl aldehyde}), {C2H4O}; methyl aldehyde (called
also {formaldehyde}), {CH2O}.
[1913 Webster PJC]

{Aldehyde ammonia} (Chem.), a compound formed by the union of
aldehyde with ammonia.
[1913 Webster]

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  • Aldehyde - Wikipedia
    Aldehyde molecules have a central carbon atom that is connected by a double bond to oxygen, a single bond to hydrogen and another single bond to a third substituent, which is carbon or, in the case of formaldehyde, hydrogen
  • Aldehyde | Definition, Structure, Examples, Facts | Britannica
    Aldehyde, any of a class of organic compounds in which a carbon atom shares a double bond with an oxygen atom, a single bond with a hydrogen atom, and a single bond with another atom or group of atoms (designated R in general chemical formulas and structure diagrams)
  • Aldehyde Functional Group: Definition, Structure, Examples
    What is an aldehyde Learn its general formula, structure, nomenclature, properties, and chemical reactions Check out a few examples, along with their uses
  • 18. 7: Aldehydes and Ketones - Chemistry LibreTexts
    Summary An aldehyde is an organic compound in which the carbonyl group is attached to a carbon atom at the end of a carbon chain
  • What are Aldehydes? - BYJUS
    How are aldehydes prepared? Aldehydes are produced through primary alcohol oxidation The acidified potassium dichromate (VI) solution used as the oxidizing agent may oxidize the produced aldehyde further to a carboxylic acid To stop at the aldehyde, you need to keep this from happening
  • What are aldehydes: definition, structure, and examples
    An aldehyde is characterized by having a carbon atom that is double-bonded to an oxygen atom and single-bonded to hydrogen and another group, making them unique among organic compounds
  • ALDEHYDE Definition Meaning - Merriam-Webster
    The meaning of ALDEHYDE is acetaldehyde; broadly : any of a class of highly reactive organic compounds that are analogous to acetaldehyde and characterized by a carbonyl group attached to a hydrogen atom
  • Aldehyde- General Structure, Classification, Properties and Faqs.
    Aldehydes contain the aldehyde group (-CHO), also known as the formyl group It is a monovalent group, meaning that the carbonyl carbon is attached to only one other group (either a hydrogen atom or a hydrocarbon group)
  • Acetaldehyde - Wikipedia
    Acetaldehyde (IUPAC systematic name ethanal) is an organic chemical compound with the formula CH3CH=O It is a colorless liquid or gas, boiling near room temperature It is one of the most important aldehydes, occurring widely in nature and being produced on a large scale in industry Acetaldehyde occurs naturally in coffee, bread, and ripe fruit, [11] and is produced by plants It is also





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