franklyn
International Hazard
Posts: 3026
Registered: 30-5-2006
Location: Da Big Apple
Member Is Offline
Mood: No Mood
|
|
Ozone warning
In response to this thread
http://www.sciencemadness.org/talk/viewthread.php?tid=9319&a...
| Quote: | Originally posted by JohnWW
Have you, or anyone else here (e.g. group member "Ozone"), ever inhaled ozone,
and lived to tell the tale, Franklyn? |
In small concentrations its odor is very distinctive so the answer must be yes
I have inhaled it. Requiring prolonged acute exposure , Ozone does not approach
the harmful dose or toxicity of Chlorine , whose effect unlike Ozone , is N O T
immediately reversable ( providing you have not already died ). Nitric oxide is
much more dangerous still. Fuorine is immediately crippling and does irreversable
permanent harm.
See - 2.5. Toxicology and Occupational Health
http://www.ozone-information.com/Ozone_in_Detail.pdf
http://www.cdc.gov/niosh/pel88/10028-15.html
http://www.osha.gov/dts/chemicalsampling/data/CH_259300.html
http://www.cdc.gov/niosh/npg/npgd0476.html
http://www.ilo.org/public/english/protection/safework/cis/pr...
When I was in middle school the practice at the time was to demonstrate the
action of nitric acid on copper in the open , often in winter in a closed classroom.
That wing of the school over the course of those few days would reek of NOx.
Needless to say the effects on people were palpable with marked pulmonary
symptoms. I wonder now if the asthma I had around this time was attributable
to this.
[Edited on 28-10-2007 by franklyn]
|
|
|
Antwain
Hazard to Others
Posts: 252
Registered: 21-7-2007
Location: Australia
Member Is Offline
Mood: Supersaturated
|
|
@ franklyn- I cant open the top link, even with password.... of course it just asks me for 'the password' without specifying, so I presume whimsy.
Well ive smelt it many times. The smell you get from using an electric blender/ mixer/ milkshake maker/high voltage (old) drill. It smells 'strong',
and 'sharp' but not 'bad' or 'unhealthy'- to me. Of course this is ppm or less. my understanding was that it was *completely safe* at the <ppm
level, thus distinguishing it from chlorine. Well lets say as safe as O2 at least.
Just as an aside, I put zero faith in OH&S 'safe levels', because I know how they are determined. Firstly, they don't know everything so just
because it is listed as non-hazardous does not mean it is. And as a rule "safe" levels are determined by taking the most sensitive animal (to a chem)
and dividing the dose or concentration where any symptoms show by what 10^3 or 10^4. There are many cases already where it is believed that humans are
orders of magnitude less sensitive to some chems than the most affected animal. But i digressed.
[Edited on 28-10-2007 by Antwain]
|
|
|
chemrox
International Hazard
Posts: 2961
Registered: 18-1-2007
Location: UTM
Member Is Offline
Mood: LaGrangian
|
|
OSHA? They've about made it illegal to climb a ladder in leather shoes.
http://www.sam-hane.com/sass/oshacowb.htm
enjoy
|
|
|
sebinou
Harmless
Posts: 11
Registered: 19-10-2007
Location: Brussel
Member Is Offline
Mood: No Mood
|
|
Well, if you want to have a good idea of what ozone smells, enter a room with a lot of working xerox machines. Either, you may smell ozone if you use
a laser printer. The Merck Index states that ozone has a 'Pleasant, characteristic odor in concns of less than 2ppm. Iritating and injurious in higher
concns.'
In fact, I think it doesn't smell so good.
During the Victorian era in the UK, it was believed that ozone was good for the health. It was also believed that ozone was responsible for the
'oceanic' odor, due to the fact it was in an higher concentration in seashore air. So people went to the coast to have the benefic effect of ozone.
Today, the fragrance industry use a note in perfume creation wich is called ozonic. The best way to add an 'ozonic' note in a perfume is to use the
molecule called Floralozone(R). You can find this note in the following perfumes: 'Cool water fem' (Davidoff, 1996), 'L'Eau d'Eden' (Cacharel, 1996),
'Polo Sport Woman' (Ralph Lauren, 1996).
|
|
|
chloric1
International Hazard
Posts: 1071
Registered: 8-10-2003
Location: GroupVII of the periodic table
Member Is Offline
Mood: Stoichiometrically Balanced
|
|
Short wave UV generates ozone. Great for removing remaining organics after activated charcoal filtration of water.
Fellow molecular manipulator
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
