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acetaldehyde

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ac⋅et⋅al⋅de⋅hyde

[as-i-tal-duh-hahyd]
–noun Chemistry.
a volatile, colorless, water-soluble liquid, C2H4O, having a pungent, fruitlike odor: used chiefly in the silvering of mirrors and in organic synthesis.
Also called ethanal.


Origin:
1875–80; acet- + aldehyde
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ac·et·al·de·hyde   (ās'ĭ-tāl'də-hīd')   
n.  A colorless, flammable liquid, C2H4O, used to manufacture acetic acid, perfumes, and drugs. Also called aldehyde.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: ac·et·al·de·hyde
Pronunciation: "as-&-'tal-d&-"hId
Function: noun
: a colorless volatile water-soluble liquidaldehyde C2H4O used chiefly in organic synthesis that can cause irritation to mucous membranes
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

acetaldehyde ac·et·al·de·hyde (ās'ĭ-tāl'də-hīd')
n.
A colorless, flammable liquid formed during ethanol metabolism and yeast fermentation of organic compounds and used to manufacture acetic acid and drugs. Also called aldehyde, ethaldehyde.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

acetaldehyde

an aldehyde used as a starting material in the synthesis of 1-butanol (n-butyl alcohol), ethyl acetate, perfumes, flavourings, aniline dyes, plastics, synthetic rubber, and other chemical compounds. It has been manufactured by the hydration of acetylene and by the oxidation of ethanol (ethyl alcohol). Today the dominant process for the manufacture of acetaldehyde is the Wacker process, developed between 1957 and 1959, which catalyzes the oxidation of ethylene to acetaldehyde. The catalyst is a two-component system consisting of palladium chloride, PdCl2, and copper chloride, CuCl2.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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