Putting Pure Oxygen through the Ozone Generator (Ozone Ep3)

My hardware store sold me 4.9 cubic meters of pure oxygen with no questions asked, so I run it through 15kV to make poison. Also, I install a lot of the upgrades suggested by the comment section on the last video, such as the pump, and some basic isolation so I don't die. Also, I move it outside so the ozone doesn't set fire to my lungs.
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[@ExtractionsAndIre]

What improvements should I do next everyone?? I probably should use those one way valves to stop the ozone backflowing into the pump every time it turns off lol oops

[@cognitivedissonancer]

I think at this point, you're ready to run some reactions/experiments. If the goal is maximum ozone output, either parallel more generators or construct your own (the electronics and mechanical design involved might not be worth your time tho). My $0.02 is ... you have a source, it works, it seems to be stable (i.e. hasn't caught on fire or exploded :P), so proceed with using the ozone. A check valve is an okay idea, although you have a volume of oxygen between the pump/cylinder and the generator anyway, so that gives you a natural backflow buffer, and a valve could restrict flow somewhat. Love from Europe

[@nigeljohnson9820]

Just leave the pump running for a while after turning off the ozone generator to flush the system with air.

[@nirodper]

Well I think you got a low efficiency because your ozone absorption wasn't good enough, try using a taller column. Also a lower oxygen flow decreases your ozone output but increases your oxygen efficiency as less is wasted

[@3er24t4g1]

Liquify ozone?

[@franglish9265]

One way valves, and more than one aquarium pump if one isn't strong enough on it's own.

[@ExtractionsAndIre]

My favourite part of this video is how it looks like it was filmed across 1 single day, despite being taken in many tiny fragments across three months

[@lexaf7578]

If your trasformer gets that hot you should meassure its output as it gets hotter maybe thats the reason for the decline in production

[@DrakkarCalethiel]

lexaf Maybe. But usually the voltage stays normal. Probably the MOSFETs in the enclosure are badly heatsinked.

[@ExtractionsAndIre]

@@DrakkarCalethiel should i take apart the transformer enclosure and try and heatsink it better?

[@DrakkarCalethiel]

Extractions&Ire Only if the thing isnt potted. How hot does it get? If it stays at around 60C theres no need for. My ZVS driver for my HV experiments goes up to around 70C after hours of abuse.

[@DrakkarCalethiel]

I could give you tons of tips to make that driver run 24/7. Mostly the circuit is verry easy to fix and even upgrade.

[@ManOfTheWildWoods]

Hey man, you might want to secure your oxygen cylinder. If that thing tips and the regulator whacks on something, you'll have some new windows in the shed.

[@jhyland87]

You make it sound like a simple and efficient way to create new windows, lol.

[@luisp.3788]

@@jhyland87 "Making new windows using pressurized oxygen cylinders! - [EASY] [NO CLICKBAIT] [ASMR] [FREE]"

[@r0cketplumber]

@@luisp.3788 Mythbusters did a good demo: kzbin.info/www/bejne/m5uoe3qEgbmibpY

[@matthewcurry3565]

Haha.... air missiles are ironic. I like ironic things.

[@Samonie67]

just a regular old Australian doing his part in regenerating the ozone layer so you guys don't boil to death.

[@arthurneddysmith]

samonie67 -We'll boil to death if we feel like it, thank you very much!

[@elephystry]

I don’t think it goes that high.

[@luisp.3788]

@@elephystry I think everyone that doesn't get the joke goes way too high.

[@fireandcopper]

They haven't banned pressurized oxygen in Australia? Don't they know that stuff is fun?

[@ExtractionsAndIre]

Yeah so there appears to be zero regulations about gas cylinders here which is surprising. I said to the people in the hardware store 'hey i'm just gonna like, chuck this in the back seat of my car, that's all cool??' and they were like ya fine. Even the same with acetylene, I could just buy three E sized cylinders and 2 oxygen ones and just chuck em in the back of my car and then drive into traffic, no laws broken

[@frogz]

@@ExtractionsAndIre ...wait, what country bans gas cylinders? we can buy up to 125 cf tanks without question in the us

[@user-xz4all]

If you were my neighbor, I would like to know your income and damage insurance ( joke:), no joke, the rules of technical supervision are written by the corpses of idiots).

[@mikechambers9129]

How do they use oxyacetylene torches without oxygen?

[@bromisovalum8417]

@@ExtractionsAndIre I'm pretty sure, at least over here, you aren't allowed to drive around with big gas cylinders in your car. They come and deliver it, as they are licensed, and of course this costs extra. But in practice I'm pretty sure the smaller distributor outlets that cater to welders mainly don't give a fuck. You can also buy small size canisters, I bought argon like this when I needed inert atmosphere for a reaction. Bottles are half a meter in size and go for 20 euros, they are throwaway bottles.

[@thevinstigator2511]

I didnt know Nile Blue was a furry yeet

[@sunspecies]

Its not the same Nile Blue as the chemistry youtuber

[@Kawka1122]

It is. Furry suit and fox tail butt plug. Nile blue

[@galacticcadet]

This is starting to look sketchy as all hell. I love it!

[@ExtractionsAndIre]

I was hoping the whole setup would look less sketchy by the end of this video, but I guess not!

[@zachz96]

International plug. That's a British plug!

[@hygri]

Those fish tank air pumps make great compressors to get your column chromatography done quick, and avoid strain injury from pumping a smegging bulb for hours.

[@HeaanLasai]

Thank you for making all these videos. This channel is awesome!

[@ExtractionsAndIre]

thanks mate!

[@piranha031091]

7:18 : I strongly suspect a lot of ozone bubbles right out, without having enough time to dissolve and react with the iodine. Also, for the nitrogen oxides issue : even if you use air instead of pure O2, they should be fairly easy to scrub off by bubbling the air/ozone/NOx mix through some NaOH solution before using it for your reaction. But congrats on making such a neat setup! Make sure you stay upwind of it... ^^

[@ExtractionsAndIre]

in future I will do stirring AND the air stone and then finally people might be able to accept my gas capture efficiency! Good thinking about the scrubbing. I can't think of any reaction in particular though where it'll be a huge issue, so hopefully it doesn't get to that. Thanks! I'm glad i'm doing the stuff outside now haha

[@piranha031091]

@@ExtractionsAndIre Stirring would be a little pointless, since the bubbling itself does that already! (That's actually the main point of bubblers in aquariums: mixing the water around to ensure everywhere gets oxygen) The problem is more a matter of column height (your bubbles only go through a few centimeters of water before reaching the surface). If you want to make sure you have proper gas capture efficiency, try making the same reaction in a tall container, like a large glass bottle, and see if you get any better yield. (just dilute with more water to increase the total volume and fill the whole volume)

[@NevinWilliams71]

@@piranha031091He could test the collection efficiency of whatever setup he settles on with a two stage setup, where the off-gassing from the first vessel gets piped through a second smaller vessel with a similar indicating solution. When the second vessel indicates little or no ozone, then his first vessel is doing an acceptable job of it.

[@piranha031091]

@@NevinWilliams71 That's a good suggestion! Takes a little more work, but quite thorough!

[@NOBOX7]

@@ExtractionsAndIre Lol

[@zubmit700]

Damn I love your channel. Thanks!

[@ExtractionsAndIre]

Glad you like it!

[@Enjoymentboy]

Based on the overheating issue you had with the transformer in a previous vid I'm wondering if the issue you have with output dropping with increased time is that it just isn't providing enough power. I'd seriously look into replacing the transformer with a much higher rated one. Even an old neon transformer might do you good.

[@mikechambers9129]

A couple of comments: 1. Ozone production level is very dependent on the the temperature of input oxygen. The lower the better (up to a point). If you are going to use the oxygen bottle, I’d suggest keeping the tube covered. 2. Likewise, humidity reduces ozone production (and increases ozone decomp). Probably not an issue with bottled oxygen but very likely to be an issue with ambient air, particular summertime outdoor air. Maybe pull input ambient air through a calcium chloride container or some other desiccant medium. 3. I played around with this 6 years ago fiddling with the chemistry of mold remediation. For ozone generation, I used a device designed by a professional remediator for his own use. It would clear a room in under 5 seconds. It was built inside a large plastic toolbox with power supply mounted inside, dual corona plated, an intake fan and standard 3” intake output ports. I paid $199 for it, and true to its word, it outperformed $5000 units. To boost its efficiency, I created an adapter for HVAC register connecting to a 10’ length of dryer exhaust tubing to supply a stead source of dried, 50F air.

[@afondlesballons881]

Hi. Have you ever tried adding the acid to the I- solution before bubbling the ozone through? It would allow direct oxidation of I- into I2 by O3/H+. I dont know but maybe O3 oxidizing power decreases with the increase of pH during your reaction (H+ is actually required for O3 to oxidize : O3 + 6H+ + 6e- => 3H2O). That would explain why your efficiency decreases with time (pH increasing) even if I think this is more likely due to the ozone tube heating or something like that.

[@jamesg1367]

Very nice! Moving over into practical territory.

[@bromisovalum8417]

Cool setup m8. This is pretty much what I had in mind when I was looking into ozonide organic chemistry experiments. The idea was preparing atropic aldehyde from styrene linear dimer. There's other nice stuff you can do with this, preparation of benzaldehydes from corresponding alkenes. Trick indeed is to use pure oxygen as the feed because if you use air you will also generate nitric oxides.

[@BothHands1]

i still think you may have lost a lot of ozone to the atmosphere. even with smaller bubbles, spheres have the lowest surface area to volume ratio, so most of the ozone never even touches the water. i think you could improve efficiency by putting your iodine solution in a very narrow, tall cup so it has to bubble through more water before it gets to the top. i think a slower oxygen flow rate would also increase efficiency, but the speed would go down. but it doesn't look like you're short on O2, so that's probably not a problem lol but i think if you took those steps, you could maybe get 1.5 grams or something. the 3g/hr quote is a bit suspect, but it's also possible that the the 3g/hr quote is only under very specific optimized conditions with various parameters that just aren't possible in outside of a huge industrial setting.

[@enderboy123me]

4:43 Do you hear that?... *That's the sound of 100 bux leaking out to the atmosphere....*

[@EmTeeVee]

3 years later and I'm sure people have mentioned this, but with your tanks make sure to turn them on/off using the main tap, and then adjust pressure using the regulator. If you ever need to shut one off in a hurry it's way way less turns to turn the tap off than to get the regulator down to zero.

[@Grymtydeify]

to combine both outputs of the pump, use 2 one way valves, one on each output, then a "Y connector" after the check valves leading to the ozone tube. I do this for my fish tank. if you don't use the check valves the 2 outputs start to fight each other since they are pulsing from a little lever balanced over a pair of diaphragms, only one output is pushing at any one moment, without the checkvavles they just cancel each other out. but with them the air can only go down the tubes, not back into the pump. all came free with the £2 airtube I ordered recently on ebay so fairly cheap stuff and you'll get double output.

[@liningpan7601]

The mosfet and diode thing is basically like water hammer. The diode in the opposite direction severs as a relief

[@kiwano1]

yoooooo, really love your content m8. @ 5:30. I'm just too paranoid about O2 and O3. I'd have the actual converter and the tubes put in a smaller separate Tupperware with hot glue? seals?

[@TheUnclestein]

Some (not all) aquarium pumps aren't a closed loop, IE the compressor has 2 sections: one valve pumps from atmosphere and the vacuum side vents out, making it impossible to pump a gas through it.

[@DancingRain]

Silly question; Do you have an aquarium store nearby? Or a supermarket with a pet store? Both usually have aquarium air pumps with no need to wait for shipping. Also, if you have either of those or a hardware store nearby, there are tee fittings that can join two tubes into one.

[@lexaf7578]

Dancing Rain but is it a teflon tee

[@ExtractionsAndIre]

I think I do, but they're generally a lot more expensive and have a much smaller range. I should check them out, but honestly the month long wait for parts is mostly fine because I always have other things to do while I'm waiting

[@josephespinosa7352]

Also the ozone bubbles will be more effective if the bubbles are much smaller in size and can be made to interact with the liquid by making the height to diameter ratio of the container larger to have the same volume of liquid occupy a higher height to increase the time the ozone travels through it. Hope it helps.

[@FranklinBryan]

Using this same setup but with an oxygen concentrator instead of the bottle. Have you upgraded yours to as a sterilization device for corona virus / covid 19? Have you checked out the ozone sensors for about $30 to check ppm? Great video series. Please continue. Thank you.

[@justjennsearcious507]

Aquarium pumps often come with nifty little one-way valves for the airline

[@clarencecherrone7914]

It's not a rip off for a regulator. Compressed oxygen can be very dangerous when it's is first turned on. Keep the videos coming!

[@nassalspray77]

The thumbnail gives me gas cylinder safety nightmares.

[@scotttod6954]

Any chance you could demonstrate various combustion experiments with the ozone? Compare air , pure oxygen and ozone.

[@junohenshaw6434]

Something that might be worth looking for is an oxygen concentrator. They're pricey new, but I got mine from a thrift store cheap. Free pure O2, straight from the air!

[@NOBOX7]

I used ozone to remove mold smell from old lab books , ozone could remove the " YELLOW " stench from your Laboratory .

[@ExtractionsAndIre]

That's a decent idea actually! It still smells...

[@bromisovalum8417]

Ozone is great to sanitize the air, for example if you are into growing mushrooms.

[@odd2354]

electronics function best in moderate cold. the loss over longer periods could be a drop in efficiency as your transformer heats up

[@liamcampbell1296]

Could a 185nm tube inside another tube with oxygen flowing through it be used as a viable way to produce ozone? Curious how the efficiency compared to a high voltage generator would be

[@elephystry]

Are you adding the same or more amount of acid to the iodate? Are you adding enough? What if you increased the pressure of oxygen from the cylinder? Also it sounds like the other hole on the pump acts as an air inlet if the other is the outlet, so maybe that should go to the outside.

[@elephystry]

I reckon that iodate levels, pump type/intensity, or even the titration method used are all considerable factors. Perhaps you should follow up with the seller and ask what was used.

[@SigEpBlue]

First thing I'd probably do: -get rid of- SMASH the death-dapter to bits, chop the brit plug off, and put one on that's designed for Australian outlets. Second thing: ventilate that container. Is that power supply to the ozone generator getting warm at all?

[@wakkowarner7391]

As the two air outputs oppose each other you need the check valves inline with each output. Otherwise you get nothing as you've found out.

[@chrispza]

BigClive calls those dreadful adaptors Deathdaptors, because it is so easy to insert a plug between live and earth.

[@josephespinosa7352]

The internal electrode inside the ozone generator tube must also be cooled to maintain a relatively constant ozone generation rate.

[@TheBackyardChemist]

Is there any way to use the O3 to make storable oxidizers? Like persulfates, peroxides, perchlorates, etc. It would be great if it could oxidize bleach into perchlorates. How about permanganates? I have not done the calculations, but O3 must have one helluva high standard electrode potential, given how unstable it is.

[@ExtractionsAndIre]

Ozone has one of the highest potentials so yes, that's all mostly possible. Permanganates, dichromates in one step from oxides, nitrates from ammonia, peroxide from water maybe, lots of things. Perchlorates are the one exception, ozone can't make them it seems, chlorate is just too hard to oxidize, which is a shame, but lots of other things to do!

[@elephystry]

Extractions&Ire Have you tried it with bleach?

[@Landogarner83]

@@ExtractionsAndIre After your first ozone video i read up on this stuff and found that ozone is supposed to be able to turn urea into nitric acid. Now that seems quite useful because urea is easy to get pretty much everywhere.

[@kidunicorn1352]

Air stone looks like a forbidden lollipop

[@JR-oh6vo]

Here's my 2 cents, you said humidity is an issue you can do 2 things, scrub the air with activated carbon and then dry the air with desiccant in 2 separate tubes, one for carbon and the other for desiccant. Now In terms of your transformer the hotter it gets the less efficient it will be, so that will need cooling and a lot of reserve to work easier. Now you should observe the corona discharge, its probably not propagating much spark as electricity is lazy taking the shortest route, you have to make it work from anode to cathode and make as much spark along the tube as you can. Your probably going to need a transformer that is frequency adjustable and very high kV, so you can make up for the high losses in the tube and Im sure your spark gap is large so decrease it so increase the ease of spark flow you should hear it really humming. Also get one of those micro bubble sintered ss air diffusers to get the o3 air in the water. Hope it helps.

[@GenericAnimeBoy]

7:35 One. Two. Five! (Three, sir.) Three!

[@alllove1754]

Now consider atmospheric pressure. You have the oxygen % variable in your control, some better air flow, but what of the millibars? Higher atmospheric pressure, via some improvised hyperbaric chamber, has to be of importance. And if you and styropyro could put your heads together you'd have a decent ozone electrical arc doing this for you. And as said about 60% of the way thru the video, nitric oxide should also be a product here. Cody's lab has a decent homemade spark gap machine that he used to make his own nitric acid and nitrates. Free fertilizer dude. And ohhh boy could you have some real fun when this thing is running proper!

[@charlesfreitag5503]

I'm sure this has been covered but a CCFL UVC would produce MUCH higher O3 conversion then HV Corona. They make U and Straight UVC Quartz "CCFL" lamps, low power input and in conjunction with pure O2 flow will produce 100% O3 if flow rates and output levels are maximized.

[@maynardjohnson3313]

I'd suggest getting (if memory serves me) get a 1N4001 diode shorted across the motor terminals. I believe with the white or silver band on the positive terminal of the motor and the other lead to the negative. If the diode gets hot and the motor doesn't spin then the diode should go the other way. I don't think that ozone is that corrosive but it might be. I know that if you have a circuit like the one that you have and you have hydrochloric acid (even capped up) that it will chew the shit out of circuitry in no time. So that might be a failure mode as well.

[@chetpower772]

Ozone likes to oxidise everthing. It really wants to boot that extra oxygen atom out. Its not corrosive like hydrochloric acid but I still wouldn't want to breath too much in.

[@NicholasA231]

Quick note on the pump. If it's like mine inside, I don't think you'd be able to hook up the two outputs into one. The diaphragms' vibrate-y bits are opposite each other on the same magnet and, I could be wrong, but I think connecting them will largely just move air back and forth between them.

[@ExtractionsAndIre]

yeah that makes sense, could explain why I saw such a shit flow rate when I combined them together, even worse than just one on its own

[@NicholasA231]

@@ExtractionsAndIre I ended up removing one of the diaphragms rather than plugging it or letting it just make noise, with the added bonus that I have a backup part. In this application especially, might not be a bad idea to have a replacement on hand. Even just the straight O2 will probably accelerate wear on generic Chinese rubber no? Though they're designed for constant use for years, so probably not too big an issue. Aquarium check valves are cheap as far as preventing back flow goes.

[@SomeSortOfCephalopod]

Often those double output pumps are outputting two sides of a diaphram. If you connect them together, you get no output, air just moves back and forth.

[@montsaintleondr7491]

What if you cool down the ozone tube with liquid nitrogen? At higher temperatures, more ozone will decompose into oxygen, as ozone is less stable (even though Le Chatelier suggests to heat it up more, since ozone formation is endothermic). I believe, it is the rate of ozone -depletion- decomposition that limits the yield, not Le Chatelier.

[@74KU]

Efficiency drops off due to less chemical in solution in that high grade plastic cup to react against so some slips by without reacting?

[@TheLuckymod13]

The flow rate probably goes to shit because the two lines cancel each other out. One way to imagine this is to realize that constriction of the outlet and back pressure of the tubing is the only reason why the airflow is constant. If you remove the tube you can feel the air is actually coming out in pulses. Dual outlet aquarium pumps usually are setup with one arm that vibrates between two rubber cups. Pulses of air puff out alternately, from one side then the other, as the pump arm moves from one side to the other like an alarm clock hammer going between the bells. Hooking them directly together means that you are essentially completing (shorting) an alternating current circuit of air with no load. To solve this issue, place an aquarium airline check valve (one way valve) in line with each before you combine their output.

[@excitedbox5705]

Keep in mind that you wont get 100% interaction of ozone with iodide so if you are getting 0.88g/h you are achieving 25% which seems like it is the shallow container that is now your limiting factor. if you can increase the time that the bubbles have to interact it will probably increase.

[@anon2479-rz3qp]

but most of the ozone just bubbled out, so it might actually be 3g/hr? you would have to build a huge column and/or use something like active charcoal tubing and measure how much charcoal disappears with a very fine scale.

[@laboratoryofliptakov8157]

Is possible use ozone for upgrade some fuels? Hexamine, or some organic or anorganic compounds? Thanks.

[@ExtractionsAndIre]

Always thinking of hexamine Dr... It is a good fuel! But ozone might make peroxides, and that makes it too unstable and not worth the trouble I think. Good to see you back on KZbin, was worried for you with the lack of activity, good to know you are safe and sound!

[@laboratoryofliptakov8157]

@@ExtractionsAndIre Thanks for your interest. Everything is fine. 10 fingers etc.

[@PhillyFail]

i have a commercial ozone generator that i used to remove cigarette smell from my car awhile back when i purchased it.

[@levantateyora9317]

To make ozoneted water to drink so you recomend the cylinder or the air pump?

[@yakacm]

Someone on my discord, turns out it's Nile Red/Blue, or should that be Nile Purple.

[@yourcrazyinorganicchemist]

Is it possible to oxidize sodium bromide into sodium bromate using ozone? Could you test it I’m wondering if it’s possible

[@guerrillaradio9953]

Try a cigarette lighter car tyre pump, like 15 bucks, available locally, and pushes far more pressure and flow rate than an aquarium pump.

[@AngDavies]

Nitrogen oxides might form some nitric acid which might screw with anything pH sensitive

[@dudets427]

Nice

[@haska9706]

Have you thought about running your air through CaCl to combat some of the effects of humidity?

[@karstenhoff9158]

The O2 from the tank is essentially 0% humidity

[@ExtractionsAndIre]

its hard to do with the aquarium pump, because the inputs are small holes all along the bottom of it. It would be good, but perhaps I can just wait for non-humid days. Where I live, its mostly just hot and very dry, we have very few days of high humidity without rain

[@mfree80286]

@@ExtractionsAndIre Not the input, the output... pump>tube>CaCl canister>tube>ozone gen>tube>mad science

[@science_and_anonymous]

LETS SEE THAT PIPERIN OXYDATION FROM OZONE TO PIPERONAL!!! WOO, DRUG CHEMISTRY

[@ExtractionsAndIre]

not sure if that's it chief

[@johnpeikert6912]

One out put on the pump blows while the other one sucks. Two check valves would solve that. Otherwise they cancel each other out

[@richardnanis]

The longer you run the ozone tube the hotter it will get and ozone production will drop! You get the best ozone amount at low temperature and no humidity. So pure, dry oxygen and low temperature production tube will give you the highest o3 production.

[@HB-et5iv]

Points to consider: #1 You seem to assume that more or less 100% of the ozone you pump into the water will be dissolved and retained to be measured later. That assumption seems to be off by an order of magnitude or two. #2 Water can only dissolve a certain amount of ozone per liter (saturation); in the order of tens of mg per liter under typical conditions of temperature, water pressure, gas pressure and ozone partial pressure. So you're limited to about, say, 0.1l*100mg/l=10mg of ozone in your solution independent of how much/long you keep adding ozone. #3 The generator's ozone output also depends on it's temperature, which in turn heavily depends on the gas flow rate because the gas significantly acts as a coolant. Sorry to say it, but the many uncontrolled variables make this experiment pretty useless for quantifying the ozone generator's output. A more reliable way would be to take different gas flow rates, say from 1l/min to 10l/min, and measure the ozone concentration of the output gas for each flow rate, then just calculate flow rate/min * concentration * 60min/h. (Conversion: in air, at 1 atm, 20 deg. C, 1ppm of ozone (v/v) equals almost exactly 2mg/l (m/v)) The biggest output value one of the flow rates yields then is about the maximum the generator can deliver, and that's of course the value to compare against the manufacturer's/seller's claim.

[@justjennsearcious507]

Yes aquarium pump please

[@jonnymorgan8385]

Thats a UK plug on that pump.

[@montsaintleondr7491]

Look, the most of iodide could have been oxidized to iodate(V) and adding acid wouldn't help, since the conversion of I(V) to I(0) depends on how much I(-) you have left.

[@ironmonkey1512]

I know ozone generators efficiency goes down when they are hot having it in a box is the worst thing you can do

[@burnblast2774]

1:38 I think that's a bit more than a bottle...

[@nigeljohnson9820]

Why did the number fall over time? What is the relationship between gas flow rate and the efficiency of ozone generation. How much of the gas is passing through without conversion. One possible reason, might be that the voltage output of the ozone generator is falling as a result of the load produced by the generation process. If this is the case, a slower flow rate may increase the efficiency. Is it worth fitting a drying tower to the gas flow for when you are not using pure oxygen?

[@ExtractionsAndIre]

Hmm, maybe you could be right about the efficiency, but I like having the flow rate as high as it is. There shouldn't be too much load on the generator just by having a higher flow rate I think... A drying tower is actually a good suggestion yeah! Although with the aquarium pump, the intake is like lots of holes underneath it, which would be very hard to connect to the output of a drying tube

[@nigeljohnson9820]

@@ExtractionsAndIre better to connect the output of the pump to a drying box. I do not know if this will work, but maybe a box or bottle, fitted with an inlet and out let, part filled with calcium chloride. There is a clue in the amount of ozone generated when using air or pure oxygen. He more oxygen put through, the greater the conversion. Le chatelier's principle would suggest that increasing the flow of reactants, reducing the concentration of product should increase the mass of product generated. This suggests a high flow rate is a good idea, however, a high flow rate reduces the time the reactants are exposed to the electric field. If the flow is lamina rather than turbulent in the ozoniser, there will be less chance of un-reacted oxygen being exposed to the field. Maybe some of the output flow could be re-injected into the input, to increase the yield. Another clue is the amount of ozone generated falls, the longer the experiment is run. This could be due to the generator heating up or because the high voltage falls over time. Something is shifting the equilibrium constant away from ozone. It might be worth pulsing the supply to overcome the heating effect. Pulsing the air supply might give the high voltage time to recover, if this is the problem. If the HT is generated using a Cockcroft and Walton multiplier, it is possible that the generator cannot support a relatively high current for very long, as the capacitors will be discharged faster than they can be charged, leading to a poorly regulated output voltage.. It would be nice to know the HT voltage and it's current. As the voltage is likely to be of the order of 7000 volts, it is not some thing I do not expect a chemist to be equipped to measure. Is the spec for the ozone generator mains supply 230 volt?

[@nigeljohnson9820]

It might be worth cooling the ozone generator, as high temperature will considerable reduce the efficiency of ozone generation. Maybe running the air feed pipe as a coil through ice water might improve the generator efficiency. A drying box would be required to remove the moisture produced by cooling the air. Water vapour. Is also reported to reduce the efficiency of ozone generation. The falling numbers of the longer runs can be explained by the heating of the ozone generator and the air pump . Ozone generation is an exothermic reaction, so cooling favours ozone production.

[@pietrotettamanti7239]

@@nigeljohnson9820 It has 15000 volts in output and I think 12 volts in input (since that's what he's using).

[@deaultusername]

re your oxygen cylinder and its cost. How much would a Oxygen generator cost you? might be cheaper in the long term and my putting though a small compressor you could fill a small tank as you need it.

[@20kilovolt]

I think its better to use a UVC fluorescent tube for the production of ozone instead of high voltage.

[@ExtractionsAndIre]

why that you reckon?

[@TheBackyardChemist]

​@@ExtractionsAndIre It does not make any NOx, I guess.

[@20kilovolt]

@@ExtractionsAndIre Because it is the UV-C that is the cause of converting oxygen to ozone. with DC high voltage you get the best result by making a corona this also emits UV-C to make a corona its important that the anode and the cathode is at a distance from each other enough to ionize the oxygen but far enough to avoid an electric arc and damaging your high voltage generator. The reason I think this TL is better because it has a larger surface area to apply the UV-C to the oxygen through the outer tube around to the fluorescent tube the spacing between here the reaction will take place. You can recognize the fluorescent lamp that it is transparent without coating made from Quartz glas But be careful with this lamp it causes burns on the skin and welding eyes. This is what I suspect it is worth to research to see if it actually is better..

[@mikechambers9129]

Oh, I forgot to add, Maxblaster has a KZbin channel where the owner answers FAQs and overviews the use and construction of the product. I do know that when I was considering purchase, the guy was very helpful by email and phone. They are, in my experience, uncommonly straight shooters in an industry of snake oil salesmen.

[@SD-fw9li]

Could the efficiency drop over longer rxn times due to decreasing I- concentration as rxn proceeds for longer?

[@ExtractionsAndIre]

that seems the most logical theory i've seen so far!

[@SD-fw9li]

Extractions&Ire dude, Epic!

[@yaykruser]

Does Ozon react with N2 to NO?

[@jogandsp]

I bet your efficiency would be higher with a slower flow rate

[@sebastianramadan8393]

Yo... cheap aquarium pumps are available at op shops, especially RSPCA-endorsed ones... I picked up 3 for $5 a few years back, fully tested, not at all dodgy (seriously lol). Spammety spam spam.

[@ficolas2]

Make benzene triozonide :D

[@ExtractionsAndIre]

ozonides one dayyy

[@roquri]

Wouldn't the conversion ratio improve by slowing the oxygen flow? Conversion rate will probably remain the same, but you would use less gas. Get 2 or 3 death trap hell machines and try a parallel, then series run. You can also get an oxygen concentrator, or some nitrogen membranes and make your own. Eliminate the gas cost. But only if you plan on using this long term, and a lot.

[@piranha031091]

The problem is, while the corona discharge makes ozone, it also decomposes it. So cannot convert all the oxygen, only tend towards a certain equilibrium value. Slowing the flow further once you're already close to it will do very little to improve your conversion.

[@nirodper]

@@piranha031091 yes but having too much flow is also useless. It boils down to what's cheaper, the oxygen or your time

[@Z-Ack]

Yea youll be able to return the tank unless its got any rust on it, any dents, threads are marred or any of the labels are missing or unreadable…. Then they say tough balls…

[@alexwang2419]

Damn, all that effort for the shittest 3-gram corona-discharge tube available on the market.

[@arthurneddysmith]

How to improve it? -Paint it red?

[@ethanoverwatch407]

Australia has shitty shipping don't they

[@leocurious9919]

How do you know the ebay listing is false? You only tryed one fairly slow flowrate of oxygen and didnt cool the unit. Also you didnt check how efficient the ozone is absorbed in the solution. Use two gas bubblers in series and see how much gets to the second.

[@pietrotettamanti7239]

It's sketchy because it's a cheap chinese ozone generator that claims a much higher ozone production rate than its practically identical and sometimes more expensive counterparts. Maybe he'd be able to squeeze another 0.5-0.6g/h out of it with optimized air capture but 3g/h seems unlikely.

[@leocurious9919]

@@pietrotettamanti7239 Its sketchy, but its the exact same principle expensive units use. Why souldnt it work the same way here? Its mostly about the oxygen being dry and the unit cool to get a high concentration. And then you need a high flow to have high massflow. Its simple math to get a high massflow out of a fairly low concentration. Im not claiming ebay listings are correct or anything, but the way he gets to his conclusion is nonsense.

[@pietrotettamanti7239]

You didn't follow what I wrote: the suspect of it not being truthful about its performance was always there (watch his previous videos), because if all of the ozone generators on ebay claim a max ozone output of 0.6-1g/h and this crappy one (which is also chinese which doesn't help), with no added features or anything whatsoever claims a 3× better performance being suspicious is the least he can do. When that's also backed up by experimental evidence I find it perfectly legit to state that the claimed performance is false. By the way I highly doubt that the manufacturers actually went through the hassle of testing it under perfect conditions in order to squeeze out every last bit of performance. Why would they do that? Our aussie here had a setup that's already above average for normal conditions. If they were being honest about it they would test it under field conditions, and if they weren't being honest with it they wouldn't even bother testing it under perfect conditions. It's not like anyone is going to sue them. My best guess is that they calculated it "yeah if x amps are supplied through the arc then y moles/hour are going to be produced", which is a fairly common practice and perfectly legal.

[@leocurious9919]

@@pietrotettamanti7239 Yes, its going to be bullshit. But even if the unit has a real(!) output 5x higher than what it says, he still wouldnt be able to tell due to his methods.

[@danielwilliams705]

No sound!!!???

[@franglish9265]

Yay NileBlue! Also, that box might get too hot. You might need to use a different one. Perhaps the loss of ozone in the longer samples, is because it's exceeding the capacity of the water to solvate it, and being displaced by other gases? If I remember correctly, oxygen and other gases aren't really that soluble in Dihydrogen Monoxide. Perhaps a solvent like a perfluorinated compound? Is it possible that it's reacting with the O3 to form Dihydrogen Dioxide?

[@ExtractionsAndIre]

H2O2 from water? I believe so, although getting any sort of good conversion might be very difficult

[@eggnogsalad6730]

Put stickers on it

[@tayro7265]

Lose the pump and use the regulator. IDK butttttt having an electrical device running on mains voltage immersed in a pure oxygen enclosed container...

[@mikechambers9129]

Here’s the link to the US company I bought my generator from my in 2012/13. www.maxblasterusa.com/ I believe my model was 15000 mg/hr. They’ve fancied up the enclosure some since then (mine is contained in heavy duty plastic toolbox. Today the all seem to be enclosed in tubular sheet metal.

[@glitch2615]

In an earlier video you stated you had degree in chemistry. Yet you have problems setting up the equipment and materials needed to properly generate ozone. Your math and stoichiometry is really good though, by the way. If I were you I would leave the creation of the ozone molecule to nature( ie lighting from thunderstorms) and man's use of terribly inefficient combustion engines. Besides small amounts are still dangerous. When I was working in a lab years ago we used it for sterilization of our equipment after use.

[@pietrotettamanti7239]

Having a degree in chemistry doesn't guarantee expertise in every field of it, you could get the best chemist in the world but if he has never used an ozone generator before he'll have propblems setting it up, like everyone else. He's done much more dangerous things, so I don't see why he should lay this down.

[@mattharvey8712]

Bravo.......u dialed up then dialed down.....wrong...........tank on - dial up....then tank off - drain pressure on line - then dial down......alwise drain linline........no oil danger.........cheers

[@chefinwhitecoat]

Never know Nile red have a furry brother.

[@mikea683]

your pump has a British plug... the plug of the motherland... the Queens plug... God bless the Queen!!!

[@jhyland87]

Thanks for sharing the details about your PWM failing. I'm setting up a water pump for my vacuum aspirator, so the screenshot at 0:45 gave me a good heads up to know what to look for. It looks like this video covers exactly what happened to you: kzbin.info/www/bejne/gomqpXhpjZeebbs Alternatively, apparently using a voltage regular instead of a PWM would also be an alternative (or even the preferred solution - Says the Amazon product question/answer gods).

[@SodiumInteresting]

Or better still a variac

[@tomasbrod1533]

That plug is not international.

[@ExtractionsAndIre]

what plug is it, do you know?

[@tomasbrod1533]

That is UK plug, @@ExtractionsAndIre

[@frogz]

@@tomasbrod1533 its international if you arnt in the uk

[@tomasbrod1533]

Are you saying, @@frogz, that it is not international if i am in the UK? Well I am not in the UK and it is not international plug.

[@frogz]

@@tomasbrod1533 it is international in the way that your nation doesn't use it

[@muhammadwasel9698]

Sir you did well ,, but please set and focus making video ,, really even there is good knowlege ,, you irritate it by jumping video ,, made it is difficult to follow ,, but to be honest you have amazing experience