Whe slicing onions a nearly pungent odor appears which also generates tears. Leek has (in a lesser extent) the same effect.
Which chemicals are responsible for this ? hissingnoise - 20-12-2010 at 09:47
Organo-sulphur compounds basically . . .
Their vapours are eye irritants - obviously!
entropy51 - 20-12-2010 at 09:53
The odor of onions is due to allyl propyl disulfide, and the lachrymatory properties are due to thiopropionaldehyde.condennnsa - 20-12-2010 at 11:08
Because ogres are like onions, and it would hurt if you shoved an ogre in your eyes.
>.>cnidocyte - 20-12-2010 at 12:37
The technical word for a compound that makes your eyes water is a lacrimator. I think the most potent lacrimator known to man is o-chlorobenzylidene
malononitrile. They don't call it tear gas for nothing. The WiZard is In - 20-12-2010 at 13:15
Whe slicing onions a nearly pungent odor appears which also generates tears. Leek has (in a lesser extent) the same effect.
Which chemicals are responsible for this ?
Onions? Heck. Why do little girls smell like anchovies?!
djh
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Ephoton - 20-12-2010 at 17:41
BARFFFfranklyn - 20-12-2010 at 20:36
While on the topic , why does flatulence stink ?
It's so deaf people can enjoy them too.
.aeacfm - 21-12-2010 at 00:28
so does this lacrimator do that it self or react with air when the onion cut and do that ? i know strange question !!!hissingnoise - 21-12-2010 at 06:43
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PS — I have a PhD in gynecology via the picture study method.franklyn - 21-12-2010 at 14:24
Only you can progress from onions to gynecology
and then not post that in the Biochemistry forum
ScienceSquirrel - 21-12-2010 at 14:32
Faire l'amour is a very personal experience.
If you both like it then it is OK.
[Edited on 22-12-2010 by ScienceSquirrel]Rich_Insane - 21-12-2010 at 14:39
Allylic organosulfur compounds are irritants AND degrade to very dilute sulfuric acid.Rogeryermaw - 24-12-2010 at 23:11
The technical word for a compound that makes your eyes water is a lacrimator. I think the most potent lacrimator known to man is o-chlorobenzylidene
malononitrile. They don't call it tear gas for nothing.
CS is one of the tear gasses and pretty much the standard one these days. However, CR is quite a bit more irritating than CS (http://en.wikipedia.org/wiki/CR_gas). Of course, OC is still even more irritating. They all have different flavors, basically
Quote:
Allylic organosulfur compounds are irritants AND degrade to very dilute sulfuric acid.
Very interesting. Isn't the treatment for pink-eye to reduce the pH of the eye in order to kill the bacteria? I wonder if irritating the heck out
of your eyes by chopping onions could be an at-home treatment.