Talk:Formaldehyde
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It's Methanal: someone wrongly "corrected" this to "methanol". I've changed it back.
Note that methanal is the same as formaldehyde, but that methanal is not the same as methanol.
- Before any IUPAC pedants step in, the preferred name is formaldehyde, as in the article, although methanal is also correct. Physchim62 20:53, 29 May 2005 (UTC)
HCHO seems like an odd way to write the formula. Its structure is more like:
H (H2CO) \ C==O / H
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Can someone find or make a better picture? Current one does not show the 'C' and while it may be obvious to a chemist might mislead or confuse some people.
Reply: I can draw that out using my Chemsketch and convert the file into JPEG format, but how do i attach the file onto this page? Regarding your comment that "HCHO seems like an odd way to write the formula", actually it is not because this way of writing the formula highlights it's functional group as an aldehyde R-CHO where R in this case is only hydrogen (H) making formaldehyde the simplest form of this functional group.
reaction products: paraformaldehyde + nitric acid
Reply: If you insist that it is paraformaldehyde that reacts, then there is no way of completing the above reaction for you because paraformaldehyde itself is a polymer (oligomer). Usually acid is added to paraform when mixing it with formalin or water in an attempt to make a solution of formalin.
paraformaldehyde + nitric acid
Can anyone help to determine the rection products of a reaction
using paraformaldehyde (solid) and concentrated nitric acid? Thanks.
Question from 220.108.208.252
Is Formaldehyde used in beer? Heard that some Japanese beer contained Formaldehyde.....true? (posted to article by 220.108.208.252, moved here 04:27, 2 Jan 2005 (UTC))
Watched a movie called 'Good morning Vietnam' (Robin Williams) last night. Was shocked that the Vietnamese beer contained formaldehyde. But not too sure if that's true.
- I would not be suprised to find that beer contained small amounts of formaldehyde. Fermentation has a lot of minor byproducts. Shimmin 14:32, Feb 16, 2005 (UTC)
uses--> "Formaldehyde kills most bacteria" im not quite sure about this i thought it killed everything spores inculded. We use it to sterilze the HEPT filters.
http://encarta.msn.com/encyclopedia_761578019/Formaldehyde.html