"You'd have to be totally nuts to not do this in a fume hood" *Proceeds to not do it in a fume hood

We have 35 tons of R717 (refrig-grade NH3) and it is no joke if you have a release. In our HAZWOPER training, they showed us films of them spraying it into an open flame. It has to be JUST the right concentration to burn. It is an excellent refrigerant. You can stick a dollar bill in the stuff and it will shrink the bill.

@carpetmonk

9 жыл бұрын

***** too bad we don't use more of those systems.. those legacy technologies were the best. your videos are also a favorite of mine, many thanks. keep up the good work guys.

@taofledermaus

9 жыл бұрын

It's very commonly used for large industrial systems. The best refrigerant in the world, next to water.

@thedudeman9000

8 жыл бұрын

+TAOFLEDERMAUS fucking baddass to see you here, man

@TheDuckofDoom.

8 жыл бұрын

+TAOFLEDERMAUS Also used in a small refrigeration device called an icey ball. Can be made in any shop and powered with a campfire.

@carpetmonk

8 жыл бұрын

as if refrigeration isn't expensive enough.. spinning, cheap gas, water and evaporation.

Ive always wanted to shrink a dollar bill in liquid ammonia, maybe you should do it and i can live vicariously through your youtube video ;)

@user-MrKips

3 жыл бұрын

Few people have found this comment.

@BackYardScience2000

3 жыл бұрын

@@user-MrKips right? And don't confuse me for him. I'm not that hyper, though maybe I should be for my videos. Hahaha!

@user-MrKips

3 жыл бұрын

@@BackYardScience2000 lol

@michaeljones8079

3 жыл бұрын

I have done it several times. I still have one, gave the rest away.

Long time ago as a kid (30 years ago) I seen a man get frozen by a leak of anhydrous ammonia. It came out of the tanks we were dragging behind the tillers to fertilize the soil. The line broke and there was a large cloud, he ran in to shut it off and didn't make it. The emergency shut offs kicked in and we run down to him, he was blue. If it wasn't for my boss Hans taking the chewing tobacco out of his mouth and giving him mouth to mouth he would be dead. Got to love our food system.

@xephael3485

2 жыл бұрын

That's an odd fanfiction for the ending of Terminator 2

@poketcg1592

2 жыл бұрын

@@xephael3485 truuuuuuuuuuuuuuuuu

@shitheadjohnson2797

2 жыл бұрын

god must have saved him.

@kentneumann5209

2 жыл бұрын

Fertilized story with bullshit.

@Tunkkis

2 жыл бұрын

@@shitheadjohnson2797 Or he just got lucky, and had someone there who knew what to do.

Very cool! The color change from blue to metallic is associated with a phase transition from an electrolytic solution, as you suggested, composed of Li+ and solvated electrons, to a metallic phase, which is lusterous and has a marked increase in conductivity (on the order of mercury metal).

@shitheadjohnson2797

2 жыл бұрын

thanks for telling me the resistance!

That smell is what make NH3 so great unlike the other man made refrigerants it tells you before it kills you!

@DriftHyena

5 жыл бұрын

I was in the engine room of a food factory when techs were swapping out oil in a compressor. Just them pouring it into the waste oil barrel was enough to trigger a cough.

@Miata822

4 жыл бұрын

@@DriftHyena JUST before it kills you. Pure ammonia is extraordinarily dangerous. Definitely read up on its physical hazards *before* making any.

@CraigDohner

4 жыл бұрын

@@Miata822 just before it kills you? What do you mean? Because I'm a RITA certified operator, and have been in some fairly dangerous scenarios. Such as walking into an engine room with liquid NH3 leaking out of a high pressure liquid line. So reading up on it has its limitations. Trained professionals have book knowledge, and experience. The thing about NH3 is it fills the air making it obvious there's a leak which is actually a benefit. Manmade refrigerants are nowhere near as obvious (which is a great point @pirate69s made BTW), making it much more likely to harm you severely. However NH3 is not like carbon monoxide. Like @pirate69s stated, it tells you (meaning lets you know it's presence, and makes you wanna run away) before it kills you. But in order for it to kill you, you'd have to inhale some pretty high concentrations of it. This is quite hard to do being your respiratory muscles contract tremendously upon inhalation. The odor it puts off when concentration levels are higher stings you nostrils making you cry, followed by a natural instinct forcing you to stop inhaling. It could kill you if you don't leave the area *AND* continue to inhale the "gasses". But that's hard to do. It gives off an odor that makes you run away. It causes you to cough if inhaled into your lungs. And even may cause respiratory damage if high concentrations of it is inhaled, or prolonged exposure to NH3 gases. It puts off a cloud when it's in very high concentrations. Anyone seeing it will run away if they know it's an NH3 cloud. If they don't know it's an NH3 cloud (or are ignorant of its effects) and inhale the cloud, they will likely suffer respiratory damage, and will have to be treated at a hospital if they're able to run away to fresh air. It's very difficult to breath twice in high concentrations. Because your body has natural defense mechanisms that stops you from inhaling it. @ScotchFox made mention of the strong odor that it puts off when compressor oil is disposed of (meaning NH3 was trapped in the oil, releasing gasses when poured). This is moderate exposure to NH3 gases, but didn't kill him. Point I'm trying to drive in here is your comment doesn't seem to make much sense when placed in context of what both of these fellas said. Normally people that fear monger on NH3, has not much of any clue as to the true dangers involved in handling NH3, so they just say it's some really dangerous stuff, so do your research. But like I said, it's not like it's carbon monoxide. It's an excellent refrigerant. It's a shame it's not used as much anymore, because it's an extremely efficient refrigerant to use. And isn't nowhere near as bad for the environment as many man made refrigerant are.

@mcore1435

3 жыл бұрын

@@Miata822 you should probably look up actual anhydrous ammonia studies, it’s not going to immediately kill you unless it’s well over 10,000 ppm. Your comment acts like a few inhales of it and your dead 😂😂 no

@Miata822

3 жыл бұрын

@@mcore1435 I was posting about the physical hazards, not toxicity. Ammonia refrigerant systems contain large volumes of pure liquid ammonia. Typically used in large fully enclosed deep freeze rooms concentrations from a leak can quickly reach lethal levels but the chemical burns to your tissues, especially lungs, will kill you long before the toxicity does if exposed to pure vaporizing liquid.

I've always found your videos interesting but as a chemistry undergrad this video was especially interesting! Very familar glassware setup used in a way I have not done. Hope to see more videos like this :D

I held my breath just watching this! Stay safe, we would miss you.

Your experiments are amazing and very educational - please continue!!

My hat is off to you sir. There are so many experiments that I have done or want to do but this is not even nearly on my bucket list because I just don't want to die that way.

Looking at the ammonia charts on engineer toolbox, if you sent the ammonia gas directly to the pressure tank (obviously not using the glass, but replacing with SS or aluminum tubing), you could liquify with ice water bath around 75psi. Might be a better way to go for us simple folk without cryogenic coolers. Also the water would condense quicker at the higher pressure. See any problems with this plan that I may be overlooking? This would be great for Einstein refrigerator, solar absorption refrigerator, etc. Hydrogen is a lot easier to get, especially when u already have the lye. A few aluminum cans and you're on your way! I can't say enough about this great KZread channel!

your videos are really good never thought you have that much videos in your playlist

Great demo! You've built up a very nice collection of glassware. I look forward to seeing what you'll use the ammonia for.

@mikeissweet

9 жыл бұрын

mikeissweet You should submerge your lithium under mineral oil btw

@mikeissweet

4 жыл бұрын

@doc dave only ever seen it on video. Magnesium also makes a quite brilliant light when burned 😎

@polosprings1351

Жыл бұрын

Gee I wonder

Amazing video. I love your channel. The color of the Lithium dissolved in the ammonia reminded me of Cesium after it's been oxidized slightly.

You are THE NEXT LEVEL. Thanks for your amazing channel.

The electride solution was fascinating, never heard of it before. Cool!

Great videos! Just a couple of suggestions. If you use dry ice, you won't have to worry about the ammonia freezing. Also, give your condensation chamber an exit tube, and lead it to an inverted funnel sitting just below the surface of water. It will absorb any excess ammonia and the funnel prevents any suck back. Then you won't have to worry about priming the chamber with ammonia, and you won't have any (or very little) ammonia escaping. I can explain better if you want.

Funny. I JUST watched a Periodic Videos episode with the Burch Reaction as well. Great video! Thanks for sharing

You sir, are mega awesome, clear, precise and logical explanation!!!! Thank you!!!

Fantastic video! Thank you for making it. Looking forward to your next video!

Awesome video. Taught me allot more than you expect

Hey Ben! Fun video as always! If you want a nice full-face respirator I recommend the North 5400 series, I have one and wear it in my shop for hours at a time when working with composites. Very comfortable. I'm not 100% sure that the Organic Vapour cartridges would have helped with Ammonia though, that's more your area of expertise!

Nice to see some real intelligence on here for a change,some of the others on here are going to get someone seriously injured or worse! Great job

Awesome channel and videos! Going to watch more!

I think you will find that propane cylinder is brazed together... which may be a problem if NH3 corrodes copper based metals...

@AppliedScience

9 жыл бұрын

Sigmatechnica I should have bought two, and torn one apart for inspection. Do you have any docs that describe propane cylinder construction? Maybe I can find a brand that is welded.

@Sigmatechnica

9 жыл бұрын

Applied Science I don't have any docs, however I ripped apart an identical looking cylinder that had held MAPP gas, and distinctly recall both the middle seam and the valves being brazed in place...

@jcims

9 жыл бұрын

Sigmatechnica could be an important point, lol

@christopherleubner6633

5 жыл бұрын

will rapidly corrode copper to the point of breaking apart.

@tetrabromobisphenol

5 жыл бұрын

If it is truly anhydrous, the ammonia wont attack copper. But, even a few ppm of water and you would have a problem.

extremely interesting, i'm looking forward for more

I really don't want to be a wise guy, but dissolving Sodium/Lithium in liquid Ammonia is not called Birch Reduction. It's a reaction in organic chemistry which reduces Aromates to the corresponding (1,4)-Dienes. Of course it uses the solvated electrons generated by Sodium in Liquid Ammonia, but the reaction of the solvated electrons with the Aromate ( e.g. Benzene) is called Birch Reduction and not the Reaction of Sodium/Lithium with Ammonia. Just to be technically correct ;) Anyway, I LOVE your Videos ! :)

@SetTheCurve

5 жыл бұрын

Timo Schramm I caught this same slip, but couldn’t have put it so well with any confidence. Bravo. I don’t think this sort of correction is wise guyery. Perhaps his slip was related to whatever he plans on doing with this stuff.

@mrchrisaryner

5 жыл бұрын

Anhydrous, Lithium, Sodium Hydroxide... Hmmm sounds familiar.

You should make a Leiden jar with that liquid conductor you made. I'd also be interested in seeing a van de graf how to or at least how they work.

Quite interesting. Thanks for sharing your knowledge,

Cant wait to see the next thing. The lithium thing was so cool :P

You're gonna tell me you have a scanning electron microscope, but no legit respirators? Priorities lol

@SetTheCurve

5 жыл бұрын

gubberfuck that gas mask is actually significantly better than most otc respirators for this application. God help him if he didn’t have it around

@vaderjo

4 жыл бұрын

When I was in the USAF, there was a train that de-railed in Minot, ND that a tank railcar carrying anhydrous ammonia burst and gassed a big part of town with anhydrous ammonia. I remember waking up at 2am to an unbearably strong smell of ammonia that instantly gave me a headache. My roommate had the idea to use our gas masks and drive up to base, and it turned out that our gas masks helped a lot, despite everyone saying there is no way that they would.

@kazimir8086

4 жыл бұрын

69 likes

@sbreheny

4 жыл бұрын

@@SetTheCurve Yes I agree. That's an Israeli gas mask which was made in huge numbers and issued to the Israeli public around the time of the 1st Gulf War. They're available cheap in good condition on eBay and Amazon (I believe). They are especially nice because they have a check valve which doesn't block your voice so you can communicate well with other people even with it on, and it also takes standard NATO canisters. I have used it for chemistry stuff and it works very well. The standard-issue cartridge has very broad coverage, from particulates like asbestos and viruses to general chemical hazards like chlorine and ammonia, to nerve agents.

@elcidbob

4 жыл бұрын

@@SetTheCurve lolwut? That's the exact opposite of the case. One of the biggest parts of civilian respiratory protection market is focused on ammonia specifically because of its agricultural uses. He could buy better respiratory protection at most midwest gas stations.

I wish I had the equipment to do this. What I could do with a cylinder of anhydrous ammonia... so many things! Thanks for the video.

@whocares5188

3 жыл бұрын

So that little bit will go along way? If I'm thinking what you are thinking

Awesome! Thanks for sharing. Be careful Ben!

That was cool Ben, thanks!

I find those propane bottles are brazed together rather than welded, the braze might react with the ammonia.

when I seen the lithium I was waiting for the ephedrine too.

@danchan7116

5 жыл бұрын

Grady Bledsoe lol, this is the reason I was reading the comments, I wanted to see some good meth lab comments

@jameemottler3573

4 жыл бұрын

@@danchan7116 same YT is classic for these

@n0username0n

4 жыл бұрын

Funny because this was next after a birch reaction and there was meth talk there too, just found it irronic this came up next

@TheMattc999

4 жыл бұрын

Dan Chan same. Edit- and next in the meth 101 series we have.....

@MmeHyraelle

4 жыл бұрын

I was like, wtf lithium, wanna make meth?

the chiller was a unit you scored some time back and repaired, yes? enjoyed seeing it put to work. I once opened a valve on a tank of anhydrous ammonia, big mistake. I started learning about alternate universes. that one I didn't survive, learned to run real fast in this one. after closing same valve

Very Nice One,...Thanks for sharing

Hi there. So silica gel isn't the best desiccant for basic compounds thanks to the acidity of the free silanol groups on its surface. I've done a lot of birch reduction lately and we use a cold finger condenser with a dry ice-acetone/alcohol mixture to condense the ammonia into the reaction vessel. The setup is a two-necked flask cooled to -78C with a gas inlet and to the outlet you attach the cold finger condenser. To that you attach a NaOH filled guard tube. This setup makes is safe and reduces the amount of gas wasted.

I just got myself one of these chillers via an online auction. It's working well although drawing a lot of current. I'm going to try and use it to make an anhydrous ammonia/ethanol solution. I'm curious to know if you have tried making a solution of ammonia in any other solvents? I will basically use your methods, except driving the ammonia gas into a stainless steel vessel containing chilled anhydrous/absolute ethanol. Then removing the remaining water (if any) by using Calcium oxide (which will form Calcium hydroxide when it comes in contact with water).

Careful those propane cylinders are braised together at the seem. i wouldn't like you to get hurt, i do enjoy your videos. Thanks Ron

An old school ice box appliance called a Crosley Ball or Icey ball could make use of this. Or an RV 3-way Dometic fridge.

Ben is literally my favorite person in the world

I have to say though, I've got good results from a mixture of two fertilizers, lime and ammonium sulphate. If lightly moistened the reaction produces copious ammonia gas with very little water in it. (The reaction mixture absorbs water and sets, so you a disposable container.) Not sure how well it'd scale up though.

@shitheadjohnson2797

2 жыл бұрын

filthy smell would come out of that. i hate this stuff is it useful for anything?

You could improve your ammonia-yield from thermal purge-out if you are giving e.g. a spoon full of sodium-hydroxide (as used in your absorber tube behind the condenser) in the aqueous ammonia-solution before heating. Your freezer for the cold-trap is very elaborated! For "every-day-use" I would propose a pot from glas or steel with acetone/dry ice e.g in a plastic bowl filled with crushed styrofoam, to submerge the steel bottle in.

@brandonjoki5533

Жыл бұрын

Styrofoam. Dry ice is hard to get here. I read that h2so4 with snow gets cold enough

@christiankrippenstapel4336

Жыл бұрын

@@brandonjoki5533 If you have too many eyes and don´t need your house any more try snow and sulfuric acid (H2SO4) NO!!! It´s very dangerous because this mixture becomes very hot and boils explosively! Better try snow with normal salt (NaCl), CaCl2 or Na2SO4.

WOW! Once in a while I find real treasure out here, and I found it with your channel! I can't believe I never found your channel years ago! Anyway, I was having a little conundrum with ammonium hydroxide as I needed at least 30% for the projects I had lined up, but when I reordered there was a problem and now I have to wait about a month before I can reorder . My question is I've got store bought clear ammonia and I believe it's a whopping 7% ammonia, the rest h2o, so I was thinking of setting up a simple distillation apparatus just to raise the percentage to a usable level for a simple reaction I need to pull off. So, would a simple distillation setup be the way? And! What about 3a molecular sieves for a drying agent, as I have a ton of them? Thank you for this channel! I intend to watch everyone of these videos, as there gold! Take care

Very interesting video. I'd change a couple of things with your distillation set up though, rather than just having a stopper for over pressure venting I'd use a balloon zip tied to a hypodermic through a Suba Seal. That way you get to see the problem coming and do something about it. Sodium hydroxide will certainly dry the vapour but you've got the problem of having it dissolve and drip into your ammonia. You could fix that by altering your set up but a better solution would be to use molecular sieves which are easy to pick up on ebay. The good thing about sieves is you can reuse them (just don't try and dry them in a microwave).

@AppliedScience

9 жыл бұрын

CNCtrl Those are great suggestions! Thanks. I have finely powered 3A sieve, but I think that I will get some pellets, which would be way more useful.

@AppliedScience

9 жыл бұрын

CNCtrl What a minute, would a 3A sieve catch NH3 as well? It's about the same size as H2O.

@kristuttle9405

9 жыл бұрын

Applied Science the 3 Angstrom molecular sieves could fit ammonia too, because it is similar bond length to water, around 100pm, but I don't think it would absorb them, because ammonia shouldn't have such a strong hydrogen bonding effect like water. The van der waals interactions should be weak enough between ammonia that it should just flow though. Large sieves are likely a better idea to minimize surface area for NH3 and H2O interaction due to H-bonding.

@wobblycogsyt

9 жыл бұрын

Applied Science I did wonder this when I suggested it. It's been a good few years since I was in the lab but I seem to remember sieves we're fairly specific for water due to hydrogen bonding. Obviously you'll get some ammonia uptake but I think it should be fairly small amount compared to how much you are distilling. If you do decide to continue using sodium hydroxide I'd suggest using something like a dreschel bottle rather than the set up you have at the moment. Sodium hydroxide can easily absorb enough water to become a liquid itself and a dreschel is easy to make. Another option would be to run the vapour through a pre-cooler to remove the water. An alcohol + dry ice bath would easily chill the vapour enough to remove the water (got to be careful about ammonia condensation though), a cheaper alternative is a salt ice bath (good for -15 at least)

@pietrotettamanti7239

5 жыл бұрын

@@AppliedScience Anhydrous sodium sulfate would work well too.

nice, like your videos! But I would test your (chromatographie column lol) if its filled with NaOH pellets, if the gas can be passed, so no pressure can build up. I think coarser NaOH pellets would be safer to use, while having a bader absorbtion rate. Because if after some time the NaOH pellets would soak up lot of water, they get sticky and won't let any gas pass. Even better would be a Gas washing bottle, where it would be hard, to build up pressure there, also you got more active surface. All in all very cool idea! Go on with your cool videos, like them!

Thanks for sharing the stuff I wouldn't do at home. :-)

Glad you are still alive with all that ammonia. Be careful man. We need you.

Fun fact: Ammonia actually *liquifies* when its dissolved in the water. Its unstable hence its volatility but is meta stable due to strong hydrogen bond formarion. It's super easy to prove; the math is super easy to do. Find the density of anhydrous liquid ammonia at room temp, then add it in parts, for instance 25% ammonia solution would be (ammonia density) + 1g/mL (water) + 1 + 1 and then you will get the density of your liquid. GUESS WHAT it's the exact same density as you'll find for ammonia solution densities. Math: Anyhydrous Ammonia(liquid) density at 60°F (aprox.) .608g/mL Water density at 60°F(aprox.) 1g/mL 25% Ammonia-Water solution ((.608g/mL + 1g/mL + 1g/mL + 1g/mL)/(4)) This equals a density of .902g/mL which is the density of ammonia solution at 60°F

I have worked with ammonia on large freezer plant (50 tonnes), we were advised on training that it is difficult to ignite however, a 17% air mixture is very explosive

@billythebake

4 жыл бұрын

a number of things can be horrifyingly flammable at a stoichiometric mixture, and relatively safe at other concentrations.

@whocares5188

3 жыл бұрын

So is this the same stuff put ac systems

Very informative. Thank you! Also, your binary clock needs to be set :)

Neat - Na and Ca work too. The solution can reduce almost any organic compound. I worked with a commercial application of Na-NH3 solution, and got to see a real NH3 fire ball one time. The gas mask helps protect your eyes, good call. A SS tube coil in dry ice might work better and avoid the freeze up. Commercially we recycled the gas with a compressor and condensed it at an elevate pressure in a water cooled heat ex. One word of advice: keep you escape path clear and be able to run like hell with your eyes closed - saved my a$$ one time.

@whocares5188

3 жыл бұрын

Why what's can go wrong

10:00 I wonder if utilizing dry ice in acetone in a nice dewar thermos would alleviate the issues with your cold trap being too cold? IIRC, that mixture achieves temperatures of ~-78 deg C, which is right around the melting point. However, when I tried this using a Stanley thermos from walmart, the lowest temp my thermocouple would show was around -70 deg C, which seems like it'd be pretty good for this purpose.

How much liquid gas should be put into the cylinder? Like do you fill the tank to half way, 3/4 of the way, or something else?

Glass wool?... Would just cotton suffice? (Since Its just holding in the sodium hydroxide, right?) And instead of sodium hydroxide, could magnesium sulfate be used? Or would that react as well?

Great video

Could the low temp of dry ice weaken an aluminum cylinder? I ask because I have an argon tank I rented and I’m trying to fill a small aluminum tank but I want to cool it with dry ice in order to increase the pressure and get the most argon as possible. It’s currently at 900psi and I would like to double it by cooling the small tank and get twice as much gas. What do you guys think?

I want to do this storage methode with liquid oxygen, do you think a usual pressuer tank will be strong enough at that low temperature and will not crack when the temperature slowly rises to ambient? I aim for about 100-200 atmospheres out of my oxygen concentrator.

...this is exactly the kinds of things i love to attempt, love that you share all of the hurdles and problem solving...thats the best part! TY for sharing.

Get a pressure suit there cheap and disposable you can get them from scientific supply stores take your air compressor out back with a small manifold with charcoal filters and carbon monoxide detector all in all it cost me about $700 to outfit really cool experiment what was the reason for using lithium dissolved in ammonia where you using it for some kind of coating?

*thank you so much* American science youtuber who uses celsius instead of fahrenheit.

@markjohnson9402

7 жыл бұрын

angus huynh Yes we can count on our fingers and toes, just like you foreigners, ;-)

@Kirbyofdeath

6 жыл бұрын

angus huynh Well, it IS the scientific standard. Not sure why you're so surprised.

@maggiep9007

5 жыл бұрын

Kelvin or gtfo

@maggiep9007

5 жыл бұрын

Kirbyofdeath Nope. Kelvin is. No valid chemistry class teaches in Celsius.

@maggiep9007

5 жыл бұрын

It makes me happy America will never adopt Celsius. When I graduated high school, we were given an equation to convert BARBARIAN units to civilized ones. Celsius was then immediately left behind for Kelvin and Fahrenheit.

Do you try to build home made Lithium batteries ? If not, Do you think it possible to do a DIY Lithium battery topic. Thanks, Amazing Channel !

Fantastic!

Just a thought, but you could use a isopropyl alcohol/dry ice bath instead of the cryogenic freezer to avoid having to switch it on and off. Might not be really more convenient, but useful if you don't have the cryogenic freezer.

Might be best to use an ammonium salt such as NH4Cl and add it to a concentrated NaOH solution to form ammonia

I'm fairly new to this type of thing, so I have some trouble identifying the different pieces of glassware. What are you using to hold the glass wool? It looks similar to a titration cylinder, but it does not seem exactly like one. Actually, would you mind writing a list of what equipment you used for this experiment?

The NH3 CaCl solar freezer uses black iron tanks and plumbing. SS is usually expensive.

I really wish you were part of my bug out plan. Sure could use someone with your skills

Good video.

That process when lithium metal is transformed into tri-or tetraammine electride is not the Birch reduction itself, for that you'd need to react this electride solution with e.g. benzene to form 1,4-dihydrobenzene. But still awesome demonstration as usual! Btw you could also make lithium amide by addition of a catalytic amount of ferrous chloride. I don't know what you could lithium amide for but still... You could. :D

@dannymonge44

5 жыл бұрын

Thank You!

Do you have information on the energy cost to remove the ammonia. For example what’s the energy cost in kWh to remove 1000 cubic feet of ammonia gas from water. I gauge it at 2.5 kWh.

Is dry ice/ethanol cold enough to condense the NH3? The machinery is a bit inconvenient for a home lab; but dry ice and denatured alcohol can be bought from hardware stores and supermarkets.

Great video as always, *****. And as always, be careful! This is some nasty stuff in a pressurized container, and we'd prefer you to continue to post more interesting videos! ;-)

You'd say that I'd be totally nuts not do it in a fumehood but what if I did it in the school lab after school when the fumehood was broken? (Everything was well greased and the ammonia was going through a scrubber.)

That gas-mask is bad ass!!! lol Awesome video.

"I used Silicone Grease to seal the ground glass joints so there's no leakage..." It also prevents the glass joints from sticking together. I am a Pothead, which is part of why I don't play games like this, unless I've been sober for 48 hours first. But, being a Pothead who uses Glassware for my Dabbing, I have found that my Bong's ground glass joints will stick together, if not sealed. This happens when the base item has a female socket, and the bowl (Quartz Cup, in my case) has a male fitting. The female socket expands when it warms up, and the male fitting slides in deeper. And when they all cool down, the grond glass fittings are gripping each other so tight, the only way to separate them is with a hammer. I dipped my Dab Stick into a bit of the "Reclaim" (Rosins) left at the bottom of my old rig, and used that as a sealer. *DO NOT USE SILICONE GREASE FOR THIS PURPOSE.* Silicone Grease is FOOD GRADE, _but that does NOT mean it is suitable for smoking!!_ It has SILICONE in it, and you DO NOT want to SMOKE GROUND GLASS.

I'm not sure about the USA, but over here in Europe it is quite easy to buy old surplus gas mask filters. They're about €5 each, might be worth checking out.

To get a low enough temperature to condense the NH3, you can use a dry ice bath. CO2 melts at -56 deg.C, NH3 condenses at -33 deg.C. An organic solvent like acetone can be used for the bath.

I was thinking, could you run the gas after the NaOH drying tube thru a Stainless Steel coil that sits in a separate chiller like a can with acetone and dry ice, which all sits above the cyrofreeze bath where you keep your catch cylinder open with the cryofreezer allowed to run to its -100degrees temp and allow the liquified NH3 to just drip into the cylinder where it would possibly freeze and stay in solid state until the run is complete?

When making his "anhydrous" ammonia, he should have sent it directly into the final storage container at -100 and let it freeze there. How about CaO (quicklime) as drying agent?

Goddamn I love this channel! :D

What size are the glass fittings?

Is contamination with mercaptan left over in the propane tank a concern? I've tried to get rid of it in the past by purging tanks with air at 100psi and could still smell it after about a dozen cycles.

@dannymonge44

5 жыл бұрын

Yes this was a major question I had.... I believe you can clean the mercaptain with either high purity alcohol, or acetone,benzene, toluene,xylene and NATURALLY DRY! when no more liquid is left after cleaning the tank. Give it a smell...If its still contaminated with mercaptain throw out! If it's relatively new you will have a mercaptain free tank.

Fantastic work! I bet your stirrer bar turned black though.

Would it be possible to freeze the solution to separate out the ammonia?

Where did you found those freezer?

how do you clean your joints of the silicone grease?

I am designing an Ammonia water Air Conditioner using a 25% Ammonia water solution and I am having a problem finding ammonia in the concentration I need. You said you found on eBay a 30% Glass Cleaner. I have tried finding it but no success. What is the brand name on the Ammonia Glass Cleaner?

you should test the purity, for example let an ammonia filled test tube, with a thermometer inside, slowly heat up inside a beaker of cold ethanol and check at what temp it boils

Applied Science Is that cold trap from Savant? RVT series?

We use degrees Kelvin as our unit of measurement in chemistry. It makes calculations easier when you don't inlclude integers.

what if you added calcium oxide? Would it not combine with water creating calcium hydroxide? And what about molecular sieves, corn and other products used to dehydrate ethanol?

I suppose that it only becomes a problem after many cycles but I thought that those disposable cylinders were not fatigue rated (i.e., they were only designed for one cycle of pressurization-depressurization)

Have you considered dissolving anhydrous ammonium nitrate in liquid ammonia? Concentrated solution is supposed to boil at over 20 deg C.

A much more efficient way to make anhydrous ammonia is to combine ammonium nitrate and sodium hydroxide. The molar mass is much higher and you have far less water to contend with.

Oh yes! And thank you for using Celsius! You are the man!

I've watched a couple dozen of your videos and I've been wondering what your background is. Are you perhaps a chemical engineer?

If you're interested in building a heating mantle, I believe nurdrage posted a video on building one. I'm going to go find the video, watch this space

@robmckennie4203

9 жыл бұрын

Make a High Temperature Heating Mantle: kzread.info/dash/bejne/gGmhx6aQcdS_ldY.html

@Kevin_Eder

9 жыл бұрын

Rob Mckennie When I saw the video title the first thing that came to mind was Nerdrage.