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acetaldehyde

acetaldehyde (ăs´Ĭtăl´dəhīd) or ethanal (ĕth´ənăl´), CH3CHO, colorless liquid aldehyde, sometimes simply called aldehyde. It melts at -123°C, boils at 20.8°C, and is soluble in water and ethanol. It is formed by the partial oxidation of ethanol; oxidation of acetaldehyde forms acetic acid. Acetaldehyde is made commercially by the oxidation of ethylene with a palladium catalyst (see Wacker process). It is used as a reducing agent (e.g., for silvering mirrors), in the manufacture of synthetic resins and dyestuffs, and as a preservative. When treated with a small amount of sulfuric acid it forms paraldehyde, (CH3CHO)3, a trimer, which is used as a hypnotic drug.

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"acetaldehyde." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 17 Oct. 2017 <http://www.encyclopedia.com>.

"acetaldehyde." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (October 17, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/acetaldehyde

"acetaldehyde." The Columbia Encyclopedia, 6th ed.. . Retrieved October 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/acetaldehyde

acetaldehyde

acetaldehyde See ethanal

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"acetaldehyde." World Encyclopedia. . Encyclopedia.com. 17 Oct. 2017 <http://www.encyclopedia.com>.

"acetaldehyde." World Encyclopedia. . Encyclopedia.com. (October 17, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/acetaldehyde

"acetaldehyde." World Encyclopedia. . Retrieved October 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/acetaldehyde