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The Science Furry
Germany
เข้าร่วมเมื่อ 12 มิ.ย. 2018
Welcome to my channel. My name is Jonathan and I make science stuff like electronics and chemistry, I build various, useful and interesting things and experiment around. Let's see where this leads to.
Nitric acid by ostwald oxidation part 1
We tried to oxidize anydrous ammonia we made in the last video to nitrate. So far we had some success, but we need to adjust a few parameters to optimize the process, so a part 2 will follow.
Here is the video where we made the ammonia: th-cam.com/video/Jk6H4oEHZZg/w-d-xo.html
Here is the video where we made the ammonia: th-cam.com/video/Jk6H4oEHZZg/w-d-xo.html
มุมมอง: 3 000
วีดีโอ
Making anhydrous ammonia
มุมมอง 1.6Kหลายเดือนก่อน
We made ammonia and condensed it in a gas cylinder, to use it in a future video trying the ostwalt process.
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In the last video I tried building a magnetron, and in this video I made a few more attemts at that. Last video: th-cam.com/video/tUcf2Hokfos/w-d-xo.html
Building a magnetron first attempt
มุมมอง 2.7K3 หลายเดือนก่อน
This is my first attempt at building a diy homemade magnetron. Next video it hopefully will work, so I can try out a bunch of stuff.
Building a DIY Triode Vacuum Tube
มุมมอง 5K8 หลายเดือนก่อน
I'm trying to build a triode vacuum tube myself. some improvement is definitely necessary, but it is working.
Building a new nitric acid generator [Birkeland Eyde Reactor]
มุมมอง 7K10 หลายเดือนก่อน
I tried to buld a better birkeland eyed reactor and made some nitric acid aswell as potassium nitrate.
How to build a Pirani vacuum gauge
มุมมอง 2.5Kปีที่แล้ว
I made a pirani vacuum gauge at home. The webside I got the plans from: integritext.net/DrKFS/pirani.htm
Mining Uranium in Germany
มุมมอง 926ปีที่แล้ว
I found aplace with higher radiactivity at an abandoned mine in Germany and found some uranium.
How to build a 100mW green laser pointer
มุมมอง 3.2Kปีที่แล้ว
I'm back and I show how to build a green laserpinter that is strong enough to burn plastic and pop ballons.
Turning a test tube into an x ray tube
มุมมอง 16K2 ปีที่แล้ว
I managed to build a working x-ray tube at home! With only a few materials from ebay.
1 Hour of 50Hz Electric Arcing
มุมมอง 2K2 ปีที่แล้ว
I made a poll if I should upload this video. 100% said yes. I hope I don't dissapoint my new subscribers. I'm still working on a real video that will come out eventually.
Building a GIANT high voltage flyback transformer
มุมมอง 1.3K2 ปีที่แล้ว
This giant DIY transformer generates up to 50kV with a power of 1kW and it's completely selfmade.
Building a photodiode radiation detector
มุมมอง 14K3 ปีที่แล้ว
Building a photodiode radiation detector
How to build the simplest [SSTC] Tesla coil
มุมมอง 19K3 ปีที่แล้ว
How to build the simplest [SSTC] Tesla coil
How to build a mini high voltage transformer
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How to build a mini high voltage transformer
How to build DIY gas discharge tubes [spectral tubes]
มุมมอง 5K3 ปีที่แล้ว
How to build DIY gas discharge tubes [spectral tubes]
Geigercounter from an electric fly swatter!
มุมมอง 1.4K3 ปีที่แล้ว
Geigercounter from an electric fly swatter!
How does a Cathode Ray Tube work? | Building a DIY CRT
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How does a Cathode Ray Tube work? | Building a DIY CRT
How to build [and calculate] a variable capacitor
มุมมอง 10K4 ปีที่แล้ว
How to build [and calculate] a variable capacitor
Did you ever try using a catalyst?
@@ChopperDave-gf9cf Not yet. But at some point I might do that.
Could you try to build Photo multiplier tube ?
Sheesh, that's so complicated. I still need to activate the one I have.
You need flow meters on the air and ammonia.
Take a shot everytime he says "in here" ;)
This is very good video
Hi when i saw your video i say to my that he is so like to elijah mikaelson in vampire diaris❤❤
Woot, the nitric acid sequel to the last video! I hope you can get it working properly!
Very nice video I enjoyed it , I tried this before and I had the same issue of too much ammonium nitrate , I used once pure platinum catalyst and second time the mix of chromium oxide and copper oxide, I think the second time I had more nitrogen dioxide but the ammonium nitrate problem still continued , Im willingly waiting for your next video to fix this issue 🤩🌹
For anyone who's interested in repeating this experiment: You can buy this catalyst ready made pretty cheaply. It's sold as platinum bright embers for gas fireplaces.
Other people mentioned it already, but I just looked it up. Seems like a great solution fot it!
4:20: Oh yes, post a video about the Pt catalyst preparation, please.
Ok, where the F you found Quarzrohr with 29/32 Schliff?? Or is it custom made? I have such pipes in diferent diameters and it is always a problem to close ends, so i always need to improvise...
It is custom made. I have a smaller one that we probably gonna use in the next video. I got that online somewhere.
Why is every small science youtuber either 1. German , 2. Furry, 3. Both
0:01 definitly was not expecting that voice to come out of that dude like that.. lmao
Very cool. Thanks.
If you are wanting to do this reaction on a hobby level but cannot find a suitable catalyst, you can use a section of brick 1 out of an automobile catalytic converter. The catalyst is coated with platinum 90% rhodium 10% which is fairly close to the screens used for making the nitrogen oxides on an industrial scale. They are 20% rhodium. If you want more nitrogen oxides then use pure oxygen and a low concentration of the ammonia vapors.❤
I thought you need more oxygen... If there is too much ammonia it can oxydize just to useless nitrogen
Secondary regulator on ammonia side?
Secondary regulator on ammonia side?
Loved your video. I have a suggestion you might consider. Coat the reaction vessel with sodium silicate and place some nichrome wire into it. After dried, add another layer of sodium silicate and allow to dry again. Once dried you can use your bench power supply to regulate and maintain a constant temperature. I look forward to your feedback. Cheers
>dammit, we only made NH4NO3 again idk man, a lot of people would be happy enough to get there lol
My idea was to electrically coat etched graphite with platinum instead of the mirroring solution (as that is not as easily available) makes the deposition much more controlled, and also faster i think? Could even use carbon fiber for it. Also i think i heard platinum-palladium is even better than just platinum. As opposed to rhodium which supposedly supports nitrogen formation.
You can put the ammonia tank in warm water to keep it from getting too cold
ive seen copper wire used wrapped similar to a clove hitch knot.
If you get a pressure regulator, you can keep constant pressure on the output of the bottle to prevent the fluctuations
@@amarpersaud2950 It had a pressure regulator, you can see it in the beginning in the explanation.
@@thesciencefurry 🤦
@@amarpersaud2950 ah the ammonia bottle xD Sorry. Yeah that's true. Just needs to be compatible with ammonia
You said in your comment that the contact time is already too long, so i think to lower the amount of ammonium nitrate byproduct produced, you should reduce how much ammonia flows through the system and increase the flow of air, creating a more oxygen rich environment. Its just a suggestion, i don't know if it will actually work, but maybe you wanna try.
@@ae-bd5gr yes, we played with all sorts of gas adjustments, if that would solve it, it would be easy.
At first i though "that's kinda shady not wanting to be seen doing chemistry on TH-cam" then i saw the channel name 😂😂😂 Yeah that's a reasonable request
There are plenty of chemistry videos with people showing their faces xD
Hey there! Do you mind explaining what you used to make the phosphor screen/ coating?
thanks bro it is really an interesting video but most amateurs do have have equipment you have
Perhaps you should electrically heat the quartz tube (tube furnace) to better control the temperature.
This could be an option but it's suboptimal. The catalyst temperature is mainly influenced by the exothermic reaction itself. I would argue, if the catalyst is not maintaining it's optimal temperature, heating it is just treating the symptom of bad reaction conditions(like flow rate and composition of the incoming gas or maybe even the geometry of the catalyst)
Green chromium oxide is just as good of a catalyst here. Sandwich it in a narrow glass tube between two pieces of ceramic wool and it will work.
@@Relatablename Not really keen on using chromium. Even tho we are in a fume hood. I think industrially platinum is preferred, I'm sure for a good reason.
@@thesciencefurry OK, it's only +3 valency which isn't toxic, and it doesn't react at all but I'll respect it. Anyways your biggest problem is contact with the catalyst, as most ammonia passes over and complexes with the NOX gases which were produced. At least use a narrow glass blowing tube and fill a good amount of the length with your platinum wool.
I am LOVING this format of videos. Also the shy friend 😭😭 so cool. Also love the explanation and calming voice over
@@nileblack I'm glad you like it. Despite the difficulties with the audio xD
Bist du im Keller deiner Eltern?
Nein😅
Probably garage
@@nileblack It's the friends shed.
Hope you get more recognition for what you do. Keep up the work
Can you make video about gas cylinder please how is made
Sure, we have to replace it anyway at some point. It's basically just an single use argon bottle with the original valve drilled out the hole tapped and a new valve screwed in. But I would not repeat that, it's not safe. We will use other cylinders in the future.
@@thesciencefurry yes i whant to see a better version and safe for high presure like chlorine or amonia gas
So there are two things I already considered 1. High pressure leads to unwanted side reactions, which is the case here. My friend tried a run before, pulling the gas through with a vacuum pump, which went better. However it's obviously not great for the pump.(We need a good membrane pump I guess) 2. The tube we used has a pretty big diameter this probably reduces the flow rate, leading to an increased contact time. Too long contact time leads to decomposition of the NO
Replace NH3 gas with Urea that will decompose into NH3 (no pressure issues) when heated. Second use a smaller diameter quartz tube with the Pt'zed wool longer inside so there is more contact time. instead of using a vacuum pump use Aspirator. You can drive the Aspirator using a small DC water pump, and add NaOH to neutralize acid, NOx's
Try using oxygen and ammonia instead of air. If you are getting too much AN smoke than you are getting too much ammonia in there. Also add a flash arrestor to prevent the ammonia from burning directly. Automobile catalyst bricks work well as the catalyst as the mix of platinum and rhodium on the first brick is similar to what's used industrially. The irony is that under reducing conditions found in exhaust, this brick is used to remove the nitrogen oxides formed by the high pressure combustion in the engine. ❤
@@christopherleubner6633 He is using pure oxygen & NH3 (not the two gas bottles).
@@guytech7310We are actually using the ammonia bottle because we can control the glas flow better than feeding the output of the reaction into the ostwald reactor.
@@thesciencefurry But you stated you had an issue with the pressure the bottle cooled as to draw NH3 from it. You should be able to control the NH3 output using Urea by thermal decomposing it & regulating the flow with temperature. Plus its probably a lot cheaper than purchasing an NH3 bottle. I am just making suggestion, not a criticism.
Does the nitrogen in air take away heat from the reaction? Maybe an oxygen concentrator could be used to provide pure oxygen.
There is enough oxygen in the air. You saw in some points the catalyst got very hot. It's more about finding the right operating parameters which is hard to judge, because we just look at how brown the flask is.
pure oxygen -> risk of boom
@@mixdxperience1000 Indeed that aswell apart from being a total waste
I forgot to mention, maybe use an aquarium air bubbler meter to gauge the gas flows?
@@WaffleStaffel The problem is not the lack of instrumentation of the gas flow, but the difficulty to judge if it works. (By looking at the color in the flask) Also, like said, with the current setup the optimal point might be below the point it's self sustained.
@@thesciencefurry Ahh. The ammonia flow really is high enough to chill the bottle? That's surprising to me, but then I've never been lucky enough to have lecture bottles, and the idea of making my own for ammonia is intimidating. I think my neighbors are too close to me if I were to have an accident. Anyway, thanks for the video, this is the most impressive attempt at the Otswalt process on YT.
Yeah the bottle cools super fast with very little gas boiled off, that's why this gas is used as refrigerant.
@@thesciencefurry can you put the cylinder into a warm temperature controlled water/oil bath to compensate for the heat loss?
@@thesciencefurry Ahh, of course. Makes sense, especially in an adsorption system. Maybe putting the bottle in a large basin of tepid water with a pump circulating the water would help stabilize the pressure.
*It was an admirable attempt!* Does the catalyst need to be thinner, like the one or two layers of screen mesh/gauze used industrially? You can get platinum gas fireplace embers surprisingly inexpensively, I think it's on a rockwool substrate, I'm not entirely sure. It's more active than the platinized quartz wool I made- (Are you referring to the Astral Chem video?). I only made one attempt, I decided to save the remainder of my materials until I have something beside methanol or ammonia to test it on.
@@WaffleStaffel ehat do you mean with thinner? Idk If I should confirm what video it is xD What we observed is that the platinum gets removed pretty fast, at least during our experiments.(In the industrial process it happens aswell to some extent) I made some new quarz wool with a bit more platinum in solution and also I'm planning to do the process twice so theres more platinum on it. Also I thought about using some other substrate because quarz wool is not that great to handle.
@@thesciencefurry Thinner in that, from what I've seen in photos, it's just one or two layers of platinum mesh sort of stretched taught like a drum in the cross section of a tubular reactor, reducing the time it's in contact with the catalyst. Ok, I shall not press on the identity of the other video ;) The idea of having your Pt burning off into a fog hurts to think about!
That's an interesting idea.I will keep this in mind for future attempts👍 I was wondering how the catalyst is made industrially. It's definitely a fine balance between getting all the gas in contact with it, while only keeping it in contact for a very short time.
👍
Hello I make the same circuit but it works reverse. When there is dark there is signal but by shining the light signal decreases. I do not know what is the reason.
The fan on my mini fridge is Dougshang it's a 80x80x25mm. DC 12 0.20A. I have the same 80mm fan Nidec Beta SL DC 12V. 0.40A. If I replace old one and put a new one. It will make my drinks cold.
Thank you! You've just made me realise I don't need another power meter for HF Ham, to check my QRP amp, I can use comparison instead... field strength meter with/without amp plugged in! =D Thanks
glory to the furry chemist!! please tell us more on how u safely calculate how much liquid u can store and the valves
And I’m guess your German too
Yes I am
@@thesciencefurry furry too?
Why does your voice sound nice and uhh soft?
Is it? I don't think it's nicer or softer than average xD
@@thesciencefurry I mean like I could fall asleep to it and I did
The gap between the core halfs is probably not necessary, because the transformer is not driven in flyback mode.
Meth
more md
Amazing video 😅 hru😊
@@slyfoxchemistry doing good, hru? :3
@@thesciencefurry I am well
I am not trusting furries with chemical weapond
THE SCIENCE FURRY "you have come to the right place" :D