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formaldehyde    音标拼音: [fɔrm'ældəh,ɑɪd] [fɚm'ældəh,ɑɪd]
n. 甲醛,蚁醛

甲醛,蚁醛

formaldehyde
n 1: a colorless poisonous gas; made by the oxidation of
methanol [synonym: {formaldehyde}, {methanal}]

Formaldehyde \For*mal"de*hyde\, n. [Formic aldehyde.] (Chem.)
A colorless, volatile liquid, {H2CO}, resembling acetic or
ethyl aldehyde, and chemically intermediate between methyl
alcohol and formic acid.
[1913 Webster]


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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  • Formaldehyde - Wikipedia
    Formaldehyde - Wikipedia Jump to content Main menu move to sidebarhide Navigation Main page Contents Current events Random article About Wikipedia Contact us Contribute Help Learn to edit Community portal Recent changes Upload file Special pages Search Appearance Donate Create account Log in Personal tools Donate
  • Facts About Formaldehyde | US EPA
    Formaldehyde is a chemical used widely by industry to manufacture building materials and numerous household products It is also a by-product of combustion and certain other natural processes
  • Formaldehyde: Toxicity, Everyday Exposure, Cancer Risk
    Formaldehyde is toxic to humans, causing respiratory side effects and increasing the risk of certain cancers Learn when exposure may be dangerous
  • Formaldehyde and Cancer Risk - NCI
    A fact sheet that discusses formaldehyde and its possible association with cancer Includes resources for more information
  • Formaldehyde | Public Health Statement | ATSDR
    Formaldehyde is a gaseous pollutant produced by both human activity and natural sources Combustion processes account directly or indirectly for most of the formaldehyde entering the environment
  • EPA reverses course on safe formaldehyde exposure threshold
    Formaldehyde (CH 2 O) is a simple, highly reactive aldehyde gas that occurs naturally in human metabolism and the environment, and as a by-product of combustion sources such as motor vehicle exhaust and tobacco smoke
  • Formaldehyde | H2CO | CID 712 - PubChem
    Formaldehyde is naturally produced in small amounts in our bodies It is used in the production of fertilizer, paper, plywood, and urea-formaldehyde resins It is also used as a preservative in some foods and in many products used around the house, such as antiseptics, medicines, and cosmetics
  • Formaldehyde and Cancer Risk - American Cancer Society
    Formaldehyde is a colorless, strong-smelling chemical used in some building materials and household products Learn about formaldehyde and cancer risk here
  • Formaldehyde Is Everywhere, But Is It Dangerous? - HowStuffWorks
    Formaldehyde, present in many household products, is generally not harmful in small amounts but can cause irritation of the skin, eyes, nose and throat, especially in sensitive individuals





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