different between formaldehyde vs polyoxymethylene

English

Pronunciation

• IPA^(key): /f??(?)?mæld?ha?d/
• Hyphenation: for?mal?de?hyde

Noun

formaldehyde (countable and uncountable, plural formaldehydes)

1. (organic chemistry) The simplest aldehyde, HCHO, a colourless gas that has many industrial applications; it dissolves in water to give formol (10%) and formalin.
   • 2010, Don Thompson, The $12 Million Stuffed Shark, Aurum Press Limited (?ISBN)

     The shark chosen to replace the original was injected with 224 gallons of formaldehyde, ten times the amount used on the first shark and in a stronger concentration.

Synonyms

• (HCHO): E240 (when used as a preservative), methanal (IUPAC name)

Hypernyms

• (organic compound): aldehyde

Related terms

• formalin
• formic acid
• formol
• thioformaldehyde

Translations

Further reading

• formaldehyde on Wikipedia.Wikipedia

English

Etymology

poly- +? oxy- +? methylene

Noun

polyoxymethylene (countable and uncountable, plural polyoxymethylenes)

1. (chemistry) A polymer of formaldehyde having a repeat unit of -CH₂-O- ; it is used in engineering to make small gears etc

Synonyms

• polyacetal
• polyformaldehyde

Translations