Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Another crazy question:

1) I will need to generate some ozone for chemical reactions, and what seems to be the most straightforward way is using germicidal lamps, but the question is how to estimate how much ozone is produced (for let's say 100W of lamps) and what should be inlet oxygen flow for maximum ozone concentration?

2) Also, I see that there are ozone-generating & non-ozone generating germicidal lamps - based on whether their glass absorb 193nm line or not. If anyone worked with non-ozone producing lamps - do you ever feel ozone odor when working with them, or ozone generation is 0? For example lamps I have nearby give ozone odor in few seconds after turning on at the distance of 1 meter (with no air movement) - but that might not mean anything as humans are very sensitive to ozone.

3) And finally, how many centimeters of oxygen under normal conditions is needed to absorb half of 193nm light? If it's more than few centimeters, I guess I will have to build box with reflectors - as far as I see, aluminum foil should reflect 193nm light back, right?

PS. Oxygen is to be generated by electrolysis of ultra pure water, so I guess it will be 100% wet. I cannot mess with compressed oxygen, that's a little over my danger tolerance :-) , and chemical oxygen generation might give me too much contaminants in line with other difficulties (hard to maintain low constant flow for hours, especially when not using water).

PPS. I know that both germicidal lamps & ozone is very dangerous.

PPPS. I guess this is still not chemistry question, as it mainly focuses on UV light. Anyway, we don't have such stack-exchange site...

share|cite|improve this question

closed as off topic by David Z Jul 9 '11 at 23:22

Questions on Physics Stack Exchange are expected to relate to physics within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

Actually this is chemistry - it is about chemicals, after all. (Not to be confused with a question that mentions chemicals but actually asks about something more fundamental) – David Z Jul 9 '11 at 23:24
That's ok. Could you suggest where can I ask this? – BarsMonster Jul 9 '11 at 23:35
As far as I know, there isn't any site on the SE network where this would be on topic - at least, not yet. I bet it would fit quite well on the Chemistry proposal which is now in commitment phase, though. – David Z Jul 10 '11 at 0:05

Browse other questions tagged or ask your own question.