The Science Furry
The Science Furry
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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
มุมมอง: 3 000

วีดีโอ

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ความคิดเห็น

  • @ChopperDave-gf9cf
    @ChopperDave-gf9cf 2 วันที่ผ่านมา

    Did you ever try using a catalyst?

    • @thesciencefurry
      @thesciencefurry 2 วันที่ผ่านมา

      @@ChopperDave-gf9cf Not yet. But at some point I might do that.

  • @nejcjug7135
    @nejcjug7135 2 วันที่ผ่านมา

    Could you try to build Photo multiplier tube ?

    • @thesciencefurry
      @thesciencefurry 2 วันที่ผ่านมา

      Sheesh, that's so complicated. I still need to activate the one I have.

  • @mikegLXIVMM
    @mikegLXIVMM 4 วันที่ผ่านมา

    You need flow meters on the air and ammonia.

  • @MrGemaxos
    @MrGemaxos 6 วันที่ผ่านมา

    Take a shot everytime he says "in here" ;)

  • @gitoss810
    @gitoss810 7 วันที่ผ่านมา

    This is very good video

  • @masih_three7180
    @masih_three7180 7 วันที่ผ่านมา

    Hi when i saw your video i say to my that he is so like to elijah mikaelson in vampire diaris❤❤

  • @josephgauthier5018
    @josephgauthier5018 7 วันที่ผ่านมา

    Woot, the nitric acid sequel to the last video! I hope you can get it working properly!

  • @shahin8349
    @shahin8349 7 วันที่ผ่านมา

    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 🤩🌹

  • @SolarSeeker45
    @SolarSeeker45 7 วันที่ผ่านมา

    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.

    • @thesciencefurry
      @thesciencefurry 7 วันที่ผ่านมา

      Other people mentioned it already, but I just looked it up. Seems like a great solution fot it!

  • @frankhaese_DrHaeseGroup
    @frankhaese_DrHaeseGroup 7 วันที่ผ่านมา

    4:20: Oh yes, post a video about the Pt catalyst preparation, please.

  • @synth1002
    @synth1002 7 วันที่ผ่านมา

    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...

    • @thesciencefurry
      @thesciencefurry 7 วันที่ผ่านมา

      It is custom made. I have a smaller one that we probably gonna use in the next video. I got that online somewhere.

  • @V0TION
    @V0TION 7 วันที่ผ่านมา

    Why is every small science youtuber either 1. German , 2. Furry, 3. Both

  • @theonewhowas7709
    @theonewhowas7709 8 วันที่ผ่านมา

    0:01 definitly was not expecting that voice to come out of that dude like that.. lmao

  • @plyaskinLab
    @plyaskinLab 8 วันที่ผ่านมา

    Very cool. Thanks.

  • @christopherleubner6633
    @christopherleubner6633 8 วันที่ผ่านมา

    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.❤

  • @f800gt76
    @f800gt76 8 วันที่ผ่านมา

    I thought you need more oxygen... If there is too much ammonia it can oxydize just to useless nitrogen

  • @Delta7Smith
    @Delta7Smith 8 วันที่ผ่านมา

    Secondary regulator on ammonia side?

  • @Delta7Smith
    @Delta7Smith 8 วันที่ผ่านมา

    Secondary regulator on ammonia side?

  • @Delta7Smith
    @Delta7Smith 8 วันที่ผ่านมา

    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

  • @xxxm981
    @xxxm981 8 วันที่ผ่านมา

    >dammit, we only made NH4NO3 again idk man, a lot of people would be happy enough to get there lol

  • @xxxm981
    @xxxm981 8 วันที่ผ่านมา

    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.

  • @kannacat1
    @kannacat1 8 วันที่ผ่านมา

    You can put the ammonia tank in warm water to keep it from getting too cold

  • @mrobinson9297
    @mrobinson9297 8 วันที่ผ่านมา

    ive seen copper wire used wrapped similar to a clove hitch knot.

  • @amarpersaud2950
    @amarpersaud2950 8 วันที่ผ่านมา

    If you get a pressure regulator, you can keep constant pressure on the output of the bottle to prevent the fluctuations

    • @thesciencefurry
      @thesciencefurry 8 วันที่ผ่านมา

      @@amarpersaud2950 It had a pressure regulator, you can see it in the beginning in the explanation.

    • @amarpersaud2950
      @amarpersaud2950 7 วันที่ผ่านมา

      @@thesciencefurry 🤦

    • @thesciencefurry
      @thesciencefurry 7 วันที่ผ่านมา

      @@amarpersaud2950 ah the ammonia bottle xD Sorry. Yeah that's true. Just needs to be compatible with ammonia

  • @ae-bd5gr
    @ae-bd5gr 8 วันที่ผ่านมา

    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.

    • @thesciencefurry
      @thesciencefurry 8 วันที่ผ่านมา

      @@ae-bd5gr yes, we played with all sorts of gas adjustments, if that would solve it, it would be easy.

  • @anotherguy9402
    @anotherguy9402 8 วันที่ผ่านมา

    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

    • @thesciencefurry
      @thesciencefurry 8 วันที่ผ่านมา

      There are plenty of chemistry videos with people showing their faces xD

  • @chrismai8337
    @chrismai8337 8 วันที่ผ่านมา

    Hey there! Do you mind explaining what you used to make the phosphor screen/ coating?

  • @geeljireoomaar6140
    @geeljireoomaar6140 8 วันที่ผ่านมา

    thanks bro it is really an interesting video but most amateurs do have have equipment you have

  • @jmhannnon
    @jmhannnon 9 วันที่ผ่านมา

    Perhaps you should electrically heat the quartz tube (tube furnace) to better control the temperature.

    • @thesciencefurry
      @thesciencefurry 8 วันที่ผ่านมา

      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)

  • @Relatablename
    @Relatablename 9 วันที่ผ่านมา

    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.

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      @@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.

    • @Relatablename
      @Relatablename 9 วันที่ผ่านมา

      @@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.

  • @nileblack
    @nileblack 9 วันที่ผ่านมา

    I am LOVING this format of videos. Also the shy friend 😭😭 so cool. Also love the explanation and calming voice over

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      @@nileblack I'm glad you like it. Despite the difficulties with the audio xD

  • @Raffi-z8p
    @Raffi-z8p 9 วันที่ผ่านมา

    Bist du im Keller deiner Eltern?

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      Nein😅

    • @nileblack
      @nileblack 9 วันที่ผ่านมา

      Probably garage

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      @@nileblack It's the friends shed.

  • @Abhishek-bc2wl
    @Abhishek-bc2wl 9 วันที่ผ่านมา

    Hope you get more recognition for what you do. Keep up the work

  • @Cristi0986
    @Cristi0986 9 วันที่ผ่านมา

    Can you make video about gas cylinder please how is made

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      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.

    • @Cristi0986
      @Cristi0986 9 วันที่ผ่านมา

      @@thesciencefurry yes i whant to see a better version and safe for high presure like chlorine or amonia gas

  • @thesciencefurry
    @thesciencefurry 9 วันที่ผ่านมา

    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

    • @guytech7310
      @guytech7310 8 วันที่ผ่านมา

      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

    • @christopherleubner6633
      @christopherleubner6633 8 วันที่ผ่านมา

      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. ❤

    • @guytech7310
      @guytech7310 8 วันที่ผ่านมา

      @@christopherleubner6633 He is using pure oxygen & NH3 (not the two gas bottles).

    • @thesciencefurry
      @thesciencefurry 8 วันที่ผ่านมา

      ​@@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.

    • @guytech7310
      @guytech7310 7 วันที่ผ่านมา

      @@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.

  • @ramous5182
    @ramous5182 9 วันที่ผ่านมา

    Does the nitrogen in air take away heat from the reaction? Maybe an oxygen concentrator could be used to provide pure oxygen.

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      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.

    • @mixdxperience1000
      @mixdxperience1000 9 วันที่ผ่านมา

      pure oxygen -> risk of boom

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      @@mixdxperience1000 Indeed that aswell apart from being a total waste

  • @WaffleStaffel
    @WaffleStaffel 9 วันที่ผ่านมา

    I forgot to mention, maybe use an aquarium air bubbler meter to gauge the gas flows?

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      @@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.

    • @WaffleStaffel
      @WaffleStaffel 9 วันที่ผ่านมา

      ​@@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.

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      Yeah the bottle cools super fast with very little gas boiled off, that's why this gas is used as refrigerant.

    • @sashimanu
      @sashimanu 9 วันที่ผ่านมา

      @@thesciencefurry can you put the cylinder into a warm temperature controlled water/oil bath to compensate for the heat loss?

    • @WaffleStaffel
      @WaffleStaffel 9 วันที่ผ่านมา

      @@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.

  • @WaffleStaffel
    @WaffleStaffel 9 วันที่ผ่านมา

    *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.

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      @@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.

    • @WaffleStaffel
      @WaffleStaffel 9 วันที่ผ่านมา

      @@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!

    • @thesciencefurry
      @thesciencefurry 9 วันที่ผ่านมา

      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.

  • @friskydingo5370
    @friskydingo5370 9 วันที่ผ่านมา

    👍

  • @abdulwahidakbari-q6r
    @abdulwahidakbari-q6r 13 วันที่ผ่านมา

    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.

  • @antresia.9723
    @antresia.9723 15 วันที่ผ่านมา

    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.

  • @SarahC2
    @SarahC2 16 วันที่ผ่านมา

    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

  • @thatpyroguy6741
    @thatpyroguy6741 20 วันที่ผ่านมา

    glory to the furry chemist!! please tell us more on how u safely calculate how much liquid u can store and the valves

  • @Neon_MWT
    @Neon_MWT 20 วันที่ผ่านมา

    And I’m guess your German too

    • @thesciencefurry
      @thesciencefurry 18 วันที่ผ่านมา

      Yes I am

    • @Neon_MWT
      @Neon_MWT 18 วันที่ผ่านมา

      @@thesciencefurry furry too?

  • @Neon_MWT
    @Neon_MWT 20 วันที่ผ่านมา

    Why does your voice sound nice and uhh soft?

    • @thesciencefurry
      @thesciencefurry 18 วันที่ผ่านมา

      Is it? I don't think it's nicer or softer than average xD

    • @Neon_MWT
      @Neon_MWT 18 วันที่ผ่านมา

      @@thesciencefurry I mean like I could fall asleep to it and I did

  • @thesciencefurry
    @thesciencefurry 22 วันที่ผ่านมา

    The gap between the core halfs is probably not necessary, because the transformer is not driven in flyback mode.

  • @Goodengelt
    @Goodengelt 23 วันที่ผ่านมา

    Meth

  • @slyfoxchemistry
    @slyfoxchemistry 25 วันที่ผ่านมา

    Amazing video 😅 hru😊

    • @thesciencefurry
      @thesciencefurry 23 วันที่ผ่านมา

      @@slyfoxchemistry doing good, hru? :3

    • @slyfoxchemistry
      @slyfoxchemistry 23 วันที่ผ่านมา

      @@thesciencefurry I am well

  • @janno288
    @janno288 25 วันที่ผ่านมา

    I am not trusting furries with chemical weapond

  • @hardwareful
    @hardwareful 25 วันที่ผ่านมา

    THE SCIENCE FURRY "you have come to the right place" :D