Talk:Nitrogen dioxide
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The article says that nitrogen dioxide is an "insidious deadly poison". Does "insidious" have some kind of meaning in terms of poison/environment control? Or is this merely excessive rhetoric? If rhetoric, then "insidious" should be excised. WpZurp 02:18, 16 Feb 2005 (UTC)
- It has a most definite meaning. If you rely on warning signs to let you know you've had too much, it might kill you. It gives no warning. "Very sneaky poison" doesn't sound so scientific. Merck Index Eleventh Edition uses the word "insidious" in its description of nitrogen dioxide. If you type "nitrogen dioxide insidious" into Google, you'll find it and its equilibrium partner nitrogen tetroxide are closely associated with the word "insidious" in the safety literature. Catbar (Brian Rock) 03:24, 16 Feb 2005 (UTC)
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- Make that third sentence "It gives little or no warning." I've caught a whiff or two of it in the past, and you quickly know you probably don't want to breathe much of the stuff. I think one could choose to ignore it, though, but that's where the "insidious deadly poison" part comes in. Catbar (Brian Rock) 03:29, 16 Feb 2005 (UTC)
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- Sorry, one more time. Take a look at the phosgene article for another use of "insidious" that defines it in context. Catbar (Brian Rock) 03:40, 16 Feb 2005 (UTC)
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- The "insidiousness" is due to the fact that symptoms of poisoning (lung edema, that is) appear 12 - hours after one has caught a too large dose. 82.26.171.254 03:09, 21 March 2006 (UTC)
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[edit] How dangerous was this?
I remember being in a high school chemistry class in about 1997. The teacher left the room and the class clown decided to mix some reagents together in a beaker. I think there was about 30mL of concentrated nitric acid, among other things. Immediately a thick red-brown gas with a pungent ozone-like odour billowed out of the beaker. He watched it for a few seconds then washed the reagents down the sink with water. Of course we were all shouting at him not to be an idiot.
We didn't evacuate and the smell lingered for quite some time. I wonder if anyone can speculate as to how much danger we were in? -- FP <talk><edits> 05:47, August 6, 2005 (UTC)
- This is not dangerous if done under a fume hood. We did it all the time in my chemistry class. In the open room, you may have been in some considerable danger. {T-Bone 18:52, 19 October 2005 (UTC)}
- You were not in any serious danger from the nitrogen dioxide, except maybe if it triggered an asthma attack. If that particular experiment produced a lethal dose, there would be a lot fewer chemists around than there are. The conc. nitric acid is what might have caused some real, permanent damage (happily it seems not to have done). Physchim62 01:56, 24 October 2005 (UTC)
- This gas is very dangerous. You have to keep in mind it will create Nitric acid when it reacts with water which there is no lack of inside your lungs. 30mL isn't enough to kill everyone in the room, but if you stuck your nose inside the beaker I can bet there would be some damage done. The effect also are not instant because you mainly die from fluids cloging your lungs. -Loyal
[edit] Please verify the data for NO2 and N2O4
The data for NO2 and N2O4 are not very consistent in literature, probably because they always exist together in equilibrium. Verification of the data is recommended before use. R6144 14:45, 26 August 2005 (UTC)
[edit] HELP!
Is Nitrogen Dioxide less dense than air?
- no, NO2 is more dense by a factor of ca. 46/29.--Smokefoot 00:58, 21 March 2006 (UTC)
[edit] Pictur1
why doesnt this molecule have a picture?
[edit] SID
SEASONAL RELATIONSHIP OF SUDDEN INFANT DEATH SYNDROME AND ENVIRONMENTAL POLLUTANTS1 TOKE HOPPENBROUWERS2, MARY CALUB, KAZUKO ARAKAWA and JOAN E. HODGMAN American Journal of Epidemiology 1981 Vol. 113, No. 6: 623-635 [1]
Outdoor carbon monoxide, nitrogen dioxide, and sudden infant death syndrome H Klonoff-Cohen1, P K Lam1 and A Lewis Archives of Disease in Childhood 2005;90:750-753 [2]
The San Diego guys where not the first and the link is brooken anyway. Pollution can cause it would be a better clue than NO2 alone.--Stone 06:43, 2 August 2006 (UTC)
