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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
    When produced in the atmosphere by the action of sunlight and oxygen on atmospheric methane and other hydrocarbons, it becomes part of smog Formaldehyde has also been detected in outer space
  • 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
  • Is There Formaldehyde in the Air? Indoor Sources Risks
    Formaldehyde is present in most homes at levels higher than outdoor air Learn what’s releasing it, when it’s a concern, and how to reduce it
  • 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 - Chemical Safety Facts
    Formaldehyde may be best known for its preservative and anti-bacterial properties Formaldehyde-based chemistry is also used to make a range of products in the building and construction, health care, automotive, and personal care products sectors
  • Formaldehyde - National Institute of Environmental Health Sciences (NIEHS)
    Most formaldehyde produced in the United States is for the manufacture of resins, such as urea-formaldehyde, used to make the adhesives for pressed wood products, such as particleboard, furniture, paneling, cabinets, and other products
  • Formaldehyde: Uses, Hazards, and Safety | SafetyCulture
    Formaldehyde is a colorless organic compound known for its sharp, distinctive odor It is highly flammable and serves multiple purposes, including as a preservative, adhesive, and chemical intermediate This makes it an incredibly versatile substance used in various industrial applications





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