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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 ( fɔːrˈmældɪhaɪd ⓘ for-MAL-di-hide, US also fər - ⓘ fər-) (systematic name methanal) is an organic compound with the chemical formula CH2O and structure H2C=O It is a pungent, colorless gas that spontaneously polymerizes into paraformaldehyde
  • 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
  • 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 Fact Sheet
    Formaldehyde is a colorless, strong-smelling gas It is commonly used in liquid form as a 37-40% aqueous solution known as formalin and in solid form as a fine, white powder called paraformaldehyde
  • 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 | Preservative, Solution, Exposure | Britannica
    formaldehyde (HCHO), an organic compound, the simplest of the aldehydes, used in large amounts in a variety of chemical manufacturing processes It is produced principally by the vapour-phase oxidation of methanol and is commonly sold as formalin, a 37 percent aqueous solution
  • 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





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