Definition of methanal in English:

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Pronunciation: /ˈmɛθənal/


Systematic chemical name for formaldehyde.
Example sentences
  • It is manufactured by heating methanal with ammonium chloride.
  • As has already been stated oxidation yields the aldhyde methanal, but further oxidation of this will yield the carboxylic acid methanoic acid.
  • A particularly important reaction is with the aldehyde methanal.


Late 19th century: blend of methane and aldehyde.

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