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Registered Member #3610
Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506
UV breaks down ozone? I was only aware of its ability to create it. The ozonator in my hot tub is just a box with a quartz UV tube in it. When I had it apart to fix it, I noticed it would smell strongly of ozone almost immediately once the lamp fired up.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
James wrote ...
UV breaks down ozone? I was only aware of its ability to create it. The ozonator in my hot tub is just a box with a quartz UV tube in it. When I had it apart to fix it, I noticed it would smell strongly of ozone almost immediately once the lamp fired up.
I think there is a recombination effect with ozone from UV, in any case I was trying to be skeptical of the UV breaking down statements above. Just my thought, but the silver silica sounds more practical.
I used a similar device that you describe James which used UV to transfer patterns and then common iso-alcohol to develop them, it generated enormous ozone as an unwanted effect.
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
Short wave UV will break oxygen molecules in two. Sometimes the recombination gives ozone. Longer wavelength UV will destroy the ozone but the destruction isn't complete as the decomposition products may reform ozone. Frankly, it's complicated so I used silvered silica.
Incidentally, perhaps the simplest way to decompose ozone is to heat it.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Bored Chemist wrote ...
Short wave UV will break oxygen molecules in two. Sometimes the recombination gives ozone. Longer wavelength UV will destroy the ozone but the destruction isn't complete as the decomposition products may reform ozone.
Yes, Bored Chemist saves me again... this was what i was trying to say.
Bored Chemist wrote ...
Frankly, it's complicated so I used silvered silica.
Incidentally, perhaps the simplest way to decompose ozone is to heat it.
As soon as i get the time and money im going to try both. I geuss we would need to answer teh following: What heat or temperature is needed? how does pressure affect the rate of decomposition?
Registered Member #3766
Joined: Sun Mar 20 2011, 05:39AM
Location:
Posts: 624
Well, I was thinking that the plasma created the ozone from the heat, but on second thought it't the ionization that's ripping the molecules apart so never-mind. Unless, of course, you get it hot enough to initiate fusion...
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Making Ozone go Away
