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caroline milne asked the Naked Scientists:Dear Sirs Could you please tell me if a small amount of nitric acid split from a test bottle and soaked in water immediately would have any effect on you if inhaled? I know if heated can be poisonous. Thank you in anticipation Caroline MilneWhat do you think?
does inhaling NO2 nitrogen dioxide gas counted as inhaling nitric acid? as the NO2 will dissolve in water in your trachea and lungs, so i suppose it count.so, i hv breathed in the NO2 gas in a school experiment about putting a piece of copper into concentrated nitric acid, after the redox, NO2 gas release. I just kinda stupid and stand there and inhale the toxic brown gas . .But it didn't kill me(that's why i can post here -_-) i felt kinda faint at that time, but i won't kill, not if you breathe in a large amount
ya that's true, but i really saw those bright brown gas come out!
oo, the toxicity of these gases.., um..are there any numbers that can compare the toxicity of gases(or toxins)? i really don't know ..
Quote from: johnson039 on 25/12/2008 03:14:57oo, the toxicity of these gases.., um..are there any numbers that can compare the toxicity of gases(or toxins)? i really don't know .. Yes, there are many. Much used in work safety is the "TLV": Threshold Limiting Value, which can be "TWA" = Time Weighted Average, or "STEL" = Short Time Extended Limit:For CO, TLV-TWA = 60 ppmFor NO2, TLV-TWA = 3 ppmIt means that in those conditions and intended in that sense NO2 is 20 times more toxic than CO. In high concentrations the relative toxicities are probably much different, however those numbers can give you an idea.