No. The only odor that would be detectible would be the odor of ozone. However, this is done in a sealed chamber, therefore there is no detectable odor to personnel working in the area during this test.
Yes, absolutely. Whenever elevated levels of ozone are present in air all natural rubbers and organic materials are affected. However, the levels of ozone used to remove odors are relatively low in comparison to this test. The ozone level and time are displayed in this video. In comparison, ozone levels used to remove odors in cars, houses, etc are normally below 2 ppm. Don't worry about using ozone to remove odors with ozone a few times in the life of a product. However, if you use ozone daily at 2 ppm for a few hours every day, that would be ill-advised.
This depends upon the space you are attempting to achieve 1,000 ppm ozone. 1 g/m3 = 467 ppm Ozone. Therefore you need 2.14 grams of ozone per cubic meter. If you space is 10 m3, 21.4 grams of ozone is required in that space. Now, determine ozone decomposition rate in your space and you can calculate the required g/hr ozone. Or, email info@oxidationtech.com with your info and we can gladly calculate for you.
@@Oxidationtechnologies Very very Thanks for your valuable reply. Can you suggest me suitable ozone analyser ? Range: 0-1000ppm Working 500ppm (Max) What is the life of ozone sensor. (Chamber capacity 65ltr Approx).
Can you explain the chemistry of whats going on here. I cant see the video very well but it looks like the glove is literally disappearing. Is the glove turning into some sort of gas like co2 and o2?
The latex glove is made of natural rubber. Natural rubber is organic in nature and has a high amount of carbon. Ozone reacts with carbon to create CO and CO2. Some of the glove does simply disappear. Most turns to powder and is making a mess of the chamber floor.
Ozone generator is corona discharge. In a small chamber like this we are using dry air for feed-gas. Air is dried to -60 deg F through a desiccant canister. Larger chambers do use oxygen for a feed-gas.
@@Oxidationtechnologies Ok, good work. Now, if you can, please compare using 185 nm UV, using both normal air and a separate experiment with pure O2, at room temperature. As a result of that, if you can do a side-by-side video comparison time lapse of UV vs electrical corona discharge, it could be a gold-standard reference filling what seems to me a significant worldwide knowledge gap. My expectation is that there will be quite a difference but I'd like to know if I'm wrong. Also it would be useful to try air with average humidity too, due to formation of nitric acid with the electrical discharge method since some N2 being split apart temporarily into single nitrogen atoms (along with the single oxygen atoms too) wind up combining in strings of varying numbers of each into nitrogen oxides, and then when encountering H2O they become nitric acid. _That, according to a book I read in the 90's where each chapter was by a different government agency (much of it focused on water purification using ozone), I've forgotten the title_
@@garyha2650 In this test we are showing the degradation of rubber due to ozone. Only the level of ozone in ppm is relevant. How the ozone is produced will not alter the results. The ozone generator is outside the chamber, therefore the effect of UV, if any will not be present on the rubber itself. Humidity certainly plays a factor in ozone production, and may built-up nitric acid (HNO3) in the chamber over time. However, due to short length of time this test needs to run to show degradation of the rubber, there will be no noticeable difference in the rubber decomposition. I'm wondering if you are asking a different question though, and focusing on something other than the rubber degradation we are trying to illustrate here. If so, please let us know. We can likely provide the answer for you.
How does it affect home appliances with metal parts, electronics, PCBs?
Here is some great info on material compatibility with ozone:
www.oxidationtech.com/ozone_resistant_materials
Is there any odor caused by the breakdown of the latex? Like a burning smell?
No.
The only odor that would be detectible would be the odor of ozone. However, this is done in a sealed chamber, therefore there is no detectable odor to personnel working in the area during this test.
Thanks for the information, that makes sense. (I've been wondering if I damaged a latex foam mattress with an ozone machine)
Does this mean that ozone treatment for odors in vehicles will harm rubber in the vehicle? steering wheel, speakers etc???
Yes, absolutely. Whenever elevated levels of ozone are present in air all natural rubbers and organic materials are affected.
However, the levels of ozone used to remove odors are relatively low in comparison to this test. The ozone level and time are displayed in this video. In comparison, ozone levels used to remove odors in cars, houses, etc are normally below 2 ppm.
Don't worry about using ozone to remove odors with ozone a few times in the life of a product. However, if you use ozone daily at 2 ppm for a few hours every day, that would be ill-advised.
@@Oxidationtechnologies VERY helpful. thank you so much!
Which ozone generator(per gram) is suitable for 1000 ppm ozone?
This depends upon the space you are attempting to achieve 1,000 ppm ozone.
1 g/m3 = 467 ppm Ozone. Therefore you need 2.14 grams of ozone per cubic meter. If you space is 10 m3, 21.4 grams of ozone is required in that space. Now, determine ozone decomposition rate in your space and you can calculate the required g/hr ozone.
Or, email info@oxidationtech.com with your info and we can gladly calculate for you.
@@Oxidationtechnologies
Very very
Thanks for your valuable reply.
Can you suggest me suitable ozone analyser ?
Range: 0-1000ppm
Working 500ppm (Max)
What is the life of ozone sensor.
(Chamber capacity 65ltr Approx).
Can you explain the chemistry of whats going on here. I cant see the video very well but it looks like the glove is literally disappearing. Is the glove turning into some sort of gas like co2 and o2?
The latex glove is made of natural rubber. Natural rubber is organic in nature and has a high amount of carbon. Ozone reacts with carbon to create CO and CO2. Some of the glove does simply disappear. Most turns to powder and is making a mess of the chamber floor.
What's the method of ozone generation? Electrical discharge? UV?
What is the input? 100% ambient air? 100% O2? Mix?
Ozone generator is corona discharge. In a small chamber like this we are using dry air for feed-gas. Air is dried to -60 deg F through a desiccant canister.
Larger chambers do use oxygen for a feed-gas.
@@Oxidationtechnologies Ok, good work. Now, if you can, please compare using 185 nm UV, using both normal air and a separate experiment with pure O2, at room temperature.
As a result of that, if you can do a side-by-side video comparison time lapse of UV vs electrical corona discharge, it could be a gold-standard reference filling what seems to me a significant worldwide knowledge gap. My expectation is that there will be quite a difference but I'd like to know if I'm wrong.
Also it would be useful to try air with average humidity too, due to formation of nitric acid with the electrical discharge method since some N2 being split apart temporarily into single nitrogen atoms (along with the single oxygen atoms too) wind up combining in strings of varying numbers of each into nitrogen oxides, and then when encountering H2O they become nitric acid. _That, according to a book I read in the 90's where each chapter was by a different government agency (much of it focused on water purification using ozone), I've forgotten the title_
@@garyha2650 In this test we are showing the degradation of rubber due to ozone. Only the level of ozone in ppm is relevant. How the ozone is produced will not alter the results. The ozone generator is outside the chamber, therefore the effect of UV, if any will not be present on the rubber itself.
Humidity certainly plays a factor in ozone production, and may built-up nitric acid (HNO3) in the chamber over time. However, due to short length of time this test needs to run to show degradation of the rubber, there will be no noticeable difference in the rubber decomposition.
I'm wondering if you are asking a different question though, and focusing on something other than the rubber degradation we are trying to illustrate here. If so, please let us know. We can likely provide the answer for you.
@@Oxidationtechnologies Prove it