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Article: formaldehyde
- Article from:
- The Columbia Encyclopedia, Sixth Edition
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Copyright informationThe Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information)
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formaldehyde , HCHO, the simplest
aldehyde
. It melts at -92°C, boils at -21°C, and is soluble in water, alcohol, and ether; at
STP
, it is a flammable, poisonous, colorless gas with a suffocating odor. Formaldehyde is used in the preparation of dyes, in the production of
Bakelite
and other plastics and synthetic resins, and for several other purposes. Pure gaseous formaldehyde is uncommon, since it readily polymerizes into paraformaldehyde, a white crystalline solid. Paraformaldehyde in the form of candles has been used for fumigating rooms, since ...
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