How To Make Concentrated Sulfuric Acid At Home - DIY

In this video, I show how to make concentrated sulfuric acid at home. As a first step, I show how to make very clean diluted sulfuric acid by electrolysis of household products, then as a second step how to increase the concentration up to 98%.
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#Sulfur #Acid #HowToMake

[@charleschidsey2831]

Thank for this scholarly yet practical tutorial. You’ve earned my subscription.

[@BlueMoonshine]

You're welcome, and thanks for your subscription!

[@BlueMoonshine]

Thank you very much!

[@WaffleStaffel]

@@BlueMoonshine If you have an Ace Hardware nearby, you should be able to find Rooto there for a good price.

[@BlueMoonshine]

@@WaffleStaffel That's good to know!

[@WaffleStaffel]

@@BlueMoonshine This is a great video, BTW. I've never seen anyone go all the way from copper sulfate to concentrated acid. At the rate it ate through the paper towel, I'd guess it's at least 92-95%. Small inaccuracies add up when trying to quantify your product. I use a 10ml syringe and a jeweler's scale, and still get large variations depending on where the plunger lands on the 10ml line. Thanks for sharing!

[@chemistryofquestionablequa6252]

This is awesome for people in the EU that can’t buy sulfuric acid. Funnily enough where I am in the US, and previously Canada I could get all the sulfuric acid I want, but I haven’t been able to find any copper sulfate root killer without ordering online. So I make my own copper sulfate or copper oxide using electrolysis in order to make other copper salts and compounds. Gotta love electrochemistry, you can use the copper metal and oxide that are produced in this process to make all sorts of other cool stuff.

[@dtiydr]

Is also nitric acid that easy to get?

[@AccidentalScience]

Love the theoretical details with all the passages. Very informative. Thank you.

[@BlueMoonshine]

You're welcome. Please, share my video on your social network!

[@Hotlineelec]

Great job!! Thanks for thorough explanation of the process including the formula and equations!!

[@BlueMoonshine]

You're welcome! Please, share my video.

[@exponential8739]

Excellent video, I enjoyed 1st year chemistry and your work makes me want to enjoy it again. The reduction explanation and math is also appreciated.

[@BlueMoonshine]

Thank you!

[@mushman9301]

when you do science /or experiment and get into that classical music like chopin Mozart and beatofen and get in that zone

[@BlueMoonshine]

@@mushman9301 ???

[@Kid_Kootenay]

really well done the perfect mix of techy techy and backyard chemist really impressed

[@BlueMoonshine]

Thank you. Here is an alternative way to do it from Epsom salt instead of copper sulfate: kzbin.info/www/bejne/omrMl4ZpqseceMU

[@tonytrade]

Good job! Maybe that white cloudy is lead sulphate, you can filter out from the concentrated acid with the "non paper" you can extract from a dry lead battery.

[@BlueMoonshine]

I'll try that!

[@thevabhas7225]

thank you. sir.. just now i am joining with your channel subscriptions..

[@zaneenaz4962]

Very nicely presented. Will be adding this to regenerate my lead acid batteries.

[@BlueMoonshine]

Thanks! Please, share the video!

[@jeanfrancoispistre2018]

Merci pour cette excellente vidéo, ça fait plaisir d'écouter quelqu'un qui sait de quoi il parle ; je m'abonne illico tant votre chaîne semble être celle que cherchais depuis longtemps ! J'écris ce commentaire en Français car au vu de votre patronyme je pense que vous devriez comprendre ! merci encore.

[@BlueMoonshine]

Merci, et bienvenu sur ma chaîne!

[@mushman9301]

very good, i had to speed up the video a bit (ADHD) it was very educational and very well presented man!

[@BlueMoonshine]

Thank you. Please, share it!

[@xunicholas165]

Thank you very much for this video!! I enjoyed it very much! Greetings from netherlands.

[@BlueMoonshine]

Graag gedaan! (I lived for 3 years in Leiden)

[@pieterveenders9793]

@@BlueMoonshine You probably bought a few chems from the old fashion pharmacy, Bik then?

[@BlueMoonshine]

@@pieterveenders9793 Not sure about what you mean. As mentioned in the video, the copper sulfate that I used in this video comes from the Home Depot.

[@kouroshkhosrawian166]

thanks beste

[@corollagl82]

Perfect ang precise

[@BlueMoonshine]

Thanks, please share my video!

[@mythics791]

Thank you for the video very enjoyable.

[@BlueMoonshine]

You're welcome. Please, share it!

[@josephburdell2041]

Wow that's the most. Informative demonstration I have seen AWESOME 😮😮😮

[@BlueMoonshine]

Thank you! Please, share the video, and check my other tutorials.

[@ziyaserdarguner]

Thank you very much for this video

[@BlueMoonshine]

You're welcome. Maybe you'll also like this tutorial in which model Aspen Angel is assisting me: kzbin.info/www/bejne/hHmldYuqo5yjoKM

[@antoniobalmorac3761]

Thank you

[@BlueMoonshine]

You're welcome. Please, share the video!

[@Berghiker]

Using 4.5v and current limited to 450mA, the final voltage was 3.3V and I got a very nice smooth copper layer around the copper wire. I pulled it off and it conducted electricity! I made copper metal.

[@sunoncream1118]

less current u aplly less porouse the copper or any metal in electrodeposit will be...

[@noelbreitenbach8673]

This is awesome thank you

[@BlueMoonshine]

You're welcome!

[@woodrowbrimm2805]

There used to be some you tube videos making Copper Plated Lead Bullets with basically the same process.

[@BlueMoonshine]

Check my other other videos, I show how to copper plate coins.

[@markfarrugia8226]

Very professionally presented. Well done

[@BlueMoonshine]

Thank you. Here is an alternative way of making sulfuric acid from Epsom salt instead of copper sulfate: kzbin.info/www/bejne/omrMl4ZpqseceMU

[@bobbylong4443]

❤❤😊 cool thanks for sharing

[@BlueMoonshine]

You're welcome. Please, share the video!

[@geeljireoomaar6140]

Thanks

[@BlueMoonshine]

You're welcome! Please share the video!

[@unlockeduk]

i use a lead annode and then distilled things after to purify

[@johanrynjah8241]

Your handling the final concentrated sulfuric without safety gloves makes me widen my eyes . . at that much viscosity it wouldn't drip off the fingers easily if it come into contact. . Enjoyed the whole video. . Greetings from India. .

[@BlueMoonshine]

I get H2SO4 on my fingers everyday, and it is not a big deal. Simply go rinse your hands within 5 minutes.

[@schrodingerscat1863]

You have to be careful using gloves around strong acids, can often be worse than getting the acid directly on your skin. Always make sure you have facilities to close by to wash off the acid immediately if spilled and you will be ok.

[@BlueMoonshine]

As an illustration, see what happens to the glove at the end of this video: kzbin.info/www/bejne/mnq6iYhrZ5WppKc

[@chemistryofquestionablequa6252]

It's not that big of a deal, it'll dry your skin out but not much more, unless it's hot, then it will immediately blacken it and eat through layers.

[@vantablack9882]

;ead is much more dangerous , i have been poisoned myself with it two times , by working with solution of lead nitrite without glothes

[@user-db6of2ck8w]

Very very good work 👏 🎉🎉🎉

[@BlueMoonshine]

Thanks!

[@mparkerlisberg]

Can you concentrate further by cooling to a slurry and a liquid and separating the two ?

[@BlueMoonshine]

No. What you are talking about is called "freeze distillation" and it just doesn't work, at least not for sulfuric acid. Here is an alternative way of making 98% sulfuric acid from Epsom salt instead of copper sulfate: kzbin.info/www/bejne/omrMl4ZpqseceMU

[@tpeter4240]

I have seen this same procedure with also graphite and platinum electrodes. Is there a reason you use lead oxide, like the cleanness of the product?

[@BlueMoonshine]

The best is platinum, which is totally inert. The problem with graphite is that it gets corroded and decomposes. Not only you have to change the electrode often, but the acid you get is polluted and black. You can filter part of it, but still you don't end up with a clean acid. On the other hand, lead dioxide is almost as good as platinum. There is a slight corrosion of the electrode that occurs, but the product of this corrosion is not soluble in the water/acid. So you can totally remove it by filtration.

[@gury37]

can you concetrate the acid using electrolesis , turning the water to haydrogen and oxygen leaving only acid behinde ?

[@BlueMoonshine]

No because when the concentration increases, some other reactions take place and you are no longer producing sulfuric acid.

[@sicarioxyz2sicario86]

you could freeze the dirty acid before filtratoon to protect the filter a bit better, right?

[@BlueMoonshine]

Maybe, I haven't tried.

[@11Eighty8productions]

Hi great video. I have one question where can I find a function generator that won’t break the bank? Thank you 🙏🏽

[@BlueMoonshine]

I don't know. Mine (the one in the video) was a broken one that I found in the dumpster of my university. It turns out that I only had to replace a $2.50 component that was burnt. I looked online and I saw that the price for the same brand new function generator was something like $850. So I guess I made a good deal.

[@11Eighty8productions]

Yea exactly what I found too lol thanks

[@jamessargent9981]

I actually found several online by doing basic search key words variable power supply very nice ones the most expensive being only about two hundred dollars.

[@11Eighty8productions]

@@jamessargent9981 thank you.

[@jethrotull2142]

Wouldn't it be smarter to use less fluid hence not having to submerge the electrodes that way and produce stronger sulfuric acid too? Could you also do a video never documented on KZbin for electrolysis of ammonium chloride?

[@BlueMoonshine]

No, you cannot do that electrolysis with less fluid (hence a higher concentration of copper sulfate). The reason is that, in order to end up with a clean sulfuric acid, you would have to electrolyze all the copper sulfate, which would lead to a high concentration of sulfuric acid. The problem is that the reactions are not the same when the concentration is too high, so you would end up with other products, and your acid would be polluted.

[@davypeleman3672]

Can you also concentrate the acid by adding more copper sulfate to the already produced acid, then continue the electrolysis?

[@BlueMoonshine]

You can probably concentrate it more by doing so, but the chemical reactions that are explained in the video are valid only when the acid is dilute. At some point, some secondary reactions will occur, which may pollute or destroy they acid. I don't know, you have to try.

[@Berghiker]

Would you not get better results if you distill the crude acid first then boil the water off later? Would that not give you a higher yield, say 93%?

[@BlueMoonshine]

If you try to distill the acid, it is the water that is gonna come off first, until the concentration reaches 98%.

[@SURFEAMORETERNO]

Sorry master. 29:00 the electrolysis are decompond the water of solution? If we let it , it increase the concentration too? Thanks for share your knowledge.

[@BlueMoonshine]

Yes, once all the copper sulfate has been consumed, the electrolysis only decomposes water, so if you let it go like this it will increase the concentration of the acid. But it will be way faster if you simply boil the water off.

[@Berghiker]

Why don't you start off with 12V and limit the current to 7A? That's what I did. The voltage finally dropped to 4V at the end. I also used a platinum plated anode electrode and copper cathode. After 15 hours the solution was not perfectly clear. A very faint bluish green color remained. Longer than 8 hours the solution would just slowly evaporate into the air and the solution would not get any clearer, just less. I used 40g CuSO4 in 100ml distilled water.

[@BlueMoonshine]

As mentioned in my video, my power supply doesn't go above 10 V and cannot withstand more than 1 A. If your solution is too concentrated, some secondary reactions can occur and mess everything up.

[@jamesfrancom8100]

This is the first time I have seen a function generator used as a power supply. What kind of DC pulse is coming from your function generator?

[@BlueMoonshine]

It is set on DC, so by definition it is not a pulse. It is a steady and constant voltage, such as that delivered by a battery.

[@fadiyosef4452]

Hello, what is the concentration of sulfuric acid that you produced before distilling it from the water and the concentration of the solution?

[@BlueMoonshine]

I don't remember, but I think this is clearly mentioned in the video and in the calculation.

[@paulcohen1555]

What is the current density (A/cm²) of the electrodes?

[@BlueMoonshine]

In my case I used 500 mA and the copper electrode is a cylinder with 1.6 cm diameter and about 10 cm was in the liquid. That makes a surface area of about 50 cm², thus the current density is 0.01 A/cm². I don't know for lead electrode, but the surface is clearly smaller, so the current density is greater.

[@thegreencat3190]

I am planning on doing this chemical reaction and also water electrolysis so I want to ask what is a good regulated voltage supply that I can buy?

[@BlueMoonshine]

I don't really know. I found mine in a trash can at some university. I disassembled and was able to fix it by changing a transistor that costed about $1. Then I did a Google search and found out that that power supply actually costs over $800. So, I was lucky!

[@simonlinser8286]

just check reviews and get a cheap one there's good ones for like 40 to 50 dollars, there'seven cheaper modules if you know how to do simple wiring. you can also use a quality power adapter like for a laptop or something else but you just have to know what voltage and amperage you're trying to use which depends on what you're doing. ive done this with an 18v 3 A supply but that might be too much. just use a multimeter, and see if you're getting steady DC V or if it's maintaining a steady current and voltage

[@thegreencat3190]

@@simonlinser8286 I am planning to buy one for about 90 dollars because it has 0-30v and 0-5A and I feel like its worth investing in one that has all those options what do you think?

[@gadamgr1227]

can i do the same with graphite rods???

[@BlueMoonshine]

Yes, but the anode will still corrode. You can filter out the corrosion.

[@AO6.3]

Hello, You are creative and your work is amazing. When I want to prepare 500 milliliters of sulfur dioxide, what are the necessary quantities of copper sulphate that I must add, and what is the appropriate current and voltage? Also, what is the appropriate size of electrodes?

[@BlueMoonshine]

"500 miililiters of sulfur dioxide" I guess you mean sulfuric acid. Well, that all depends on the concentration that you want.

[@AO6.3]

@@BlueMoonshineI am so sorry, I mean sulfuric acid 98% Could you tell me, how I can make lead electrode?

[@BlueMoonshine]

@@AO6.3 Well, everything is explained in the tutorial, so you have to actually watch it!

[@AO6.3]

@@BlueMoonshine Ok but what about 500 ml of sulphuric acid

[@BlueMoonshine]

@@AO6.3 Well, the video shows you how I made 10 mL (I don't remember for sure, long time I made this video). So if you want 500 mL which is 50 times more, then you multiply the quantity of water and the copper sulfate that were used by 50. Instead of using a jar like I did, use a bucket.

[@nasifabdullah362]

the white residues were lead particles. I did this experiment and if you add KI to this acid, acid will turn yellow which confirms the presence of lead in the solution.

[@BlueMoonshine]

Alright! Good to know.

[@richard-l448]

instead of a glass rod, can you use a plastic one?

[@BlueMoonshine]

Yes, but do some tests. Some plastic will melt, some others won't. HDPE plastic seems to be fine with sulfuric acid.

[@jajkonatwardo5493]

Thank you for tutorial, i will use it because in my country i cant buy sulfuric acid unfortunately, but please use gloves when working with dangerous chemicals

[@BlueMoonshine]

You're welcome. Thanks for the advice, but having sulfuric acid on your hands is not a big deal as long as you rinse them within a few minutes. For example, in this video, my partner purposely pours nitric acid on my finger and also on a glove to show what happens: kzbin.info/www/bejne/hHmldYuqo5yjoKM

[@fartsfartington9019]

This is a dumb question but can you over do the electrolysis? Like what would happen if I just keep the electrolysis going?

[@BlueMoonshine]

When all the copper sulfate has been turned into sulfuric acid, then it is the water that gets electrolyzed, hence producing hydrogen at the cathode and oxygen at the anode. Therefore, no pollution of the acid is produced by over-doing the electrolysis. Actually, I recommend doing it to make sure that all the copper sulfate has been consumed.

[@fartsfartington9019]

@@BlueMoonshine thanks boss. Your videos kick ass

[@BlueMoonshine]

@@fartsfartington9019 You're welcome. Please, share the video!

[@tomoms3001]

So, do I need to purify that 99% copper sulphate, or is 99% purity good enough to work with?

[@BlueMoonshine]

99% copper sulphate is good enough.

[@dtiydr]

43:30 Just put the measuring cylinder on the scale and then press "TARE" top right on the scale so will it automatically zero the scale and thus easy weighing what ever else is put on in it. Common knowledge when using scales so I'm surprised you didn´t used that since it saves a lot of time and calculating.

[@BlueMoonshine]

"Common knowledge when using scales" Thank you, I know this! The reason I did it the way I did is because my scale quickly automatically resets, and doesn't leave me enough time to carefully pour the acid into the cylinder after I press "TARE".

[@dtiydr]

@@BlueMoonshine Then it doesn't work as supposed and should be changed out.

[@BlueMoonshine]

@@dtiydr Yes, but the problem was because of moisture. After I let it dry, it was working properly again. It still works now. That video was made 2 years ago.

[@dtiydr]

@@BlueMoonshine Buy a waterproof one and it will never happen again.

[@paulcohen1555]

Why don't you use an constant current power supply?

[@BlueMoonshine]

Because I didn't have one when I made this video.

[@thevabhas7225]

For Battery can apply... with out heating system..

[@BlueMoonshine]

I don't understand what you mean.

[@yeringercekyuzu]

Can soil minerals be electrolyzed?

[@BlueMoonshine]

I believe so, as long as they are ionized when in water.

[@yeringercekyuzu]

@@BlueMoonshine Thank You very much

[@Berghiker]

Why could you not get 95% H2SO4? What went wrong?

[@BlueMoonshine]

I didn't boil long enough.

[@gaulix69]

hello, I need H2SO4 to make NiSO4 for nickel electroplating. I dont want to use the nickel acetate, because of nasty smelling of acetic acid. by the way it is weaker than H2SO4. also all proffesionnal nickel plating bath formlation are based on the watt bath that use sulfate and chloride.. NiCl2 is avalaible, but the price is exuberant so I found olds pure Nickel pans for a good price and I'll make myself somes nickels salts. But in EU since 21 fev 2021 the H2SO4 isn't avalaible above 15% so I'm here ! I have two questions : -For dissolving Ni metal I don't need concentrated H2SO4, but concentrated enough to disolving the nickel quick with heating. Concentrating H2SO4 by boiling is a thing I'had would like avoid (because I don't have a lab fumes hood or gardn, just simple house air vent) ... so how high H2SO4 concentration is it possible to go just via electrolysis (without boiling), adding more copper sulphate as it drops out of solution? -My second question is in the optic of the use of this process to concentrate H2SO4 by using 15% H2SO4 instead of the demineralised water electrolyte: electrolysis of CuSO4 in a 15%H2SO4 electrolyte. The goal is to reatch quicker higher concentration just by electrolysis. for exemple 30 or 50% maybe ?

[@BlueMoonshine]

I'm not an expert in the field, but i don't think you can reach a high concentration by electrolysis. As the concentration of sulfuric acid increases, other reactions take place if you keep doing the electrolysis, which pollutes your acid. So, i think you have to boil the water off. Now, if your target concentration is 50% (do some google search about this, because here I'm just making a hypothesis), you will have to heat the acid at a temperature that is not too high, greater that 100°c, but not the azeotropic temperature of 337°c. So, if the temperature is not too high, only water would boil off, without generating toxic gases, so you might be able to do it on your stove without a fume hood. Once again, this is speculative, so do some research about it before trying this idea that could be very wrong...

[@Berghiker]

How do I make 9M sulphuric acid from this electrolysis production? What is the calculation for this?

[@BlueMoonshine]

If you do the electrolysis using the amount of water and copper sulfate that I mention in the video, you end up with 0.3 M acid, as explained. If you want 9M, you need to multiply the concentration by 30, which means you need to boil water off until you end up with 30 times less liquid. So, with 600 mL of water (as in the video), you should boil the water off until you are left with 20 mL.

[@Berghiker]

@@BlueMoonshine So you only made 0,667ml, right?

[@BlueMoonshine]

@@Berghiker As mentioned in the video, I made 600 mL of 0.3 M acid, then I concentrated it.

[@NiNinjaII]

Can the acid on Amazon (15% sulfuric acid) be used to get concentrated sulfuric acid by distillation?

[@BlueMoonshine]

Yes, but you don't have to distill it, just boil the water off.

[@NiNinjaII]

@@BlueMoonshine I heard that reaching 80% was achievable by using this method but that 98% was impossible without distillating.

[@BlueMoonshine]

@@NiNinjaII This is wrong, unless your diluted sulfuric acid is not pure to begin with. As I proved in the video, I reached a concentration of nearly 83%, hence greater than 80%. I didn't reach 98% because my acid was not pure (and also maybe because I didn't boil enough water off). But, once again, if your acid is pure, then you will reach a concentration of 98% just by boiling the water off. Obviously, if it is pure, you will reach the azeotropic concentration, which is 98%. If you distill it, everything will go to the receiving flask, nothing would be left in the boiling flask, so what would be the point of the distillation?

[@NiNinjaII]

What if the car battery acid isn't pure? Will I be oblikgated to use distillation then? @@BlueMoonshine

[@BlueMoonshine]

@@NiNinjaII That depends on the boiling temperature of the impurities. But for a car battery, you can expect the acid that they sell to be relatively pure. BTW, 15% concentration seems to be low for a car battery. Usually the concentration for car batteries is something between 30% and 50%.

[@elitequeef]

Would this be good enough to revive lead-acid batteries?

[@BlueMoonshine]

Yes, but for lead acid batteries, you need to concentrate the acid only up to 30% or 40%.

[@elitequeef]

@@BlueMoonshine so we would just have to concentrate it. I'm just getting into it and now I'm in the process of procuring the right equipment to do all the basics. I really enjoy the straightforward content. Thanks brother!

[@BlueMoonshine]

@@elitequeef You're welcome, and don't hesitate to check my other tutorials! 🙂

[@elitequeef]

@@BlueMoonshine It's just Abbott to those who are willing to have a conversation with me :) I have already checked out your copper stuff. I am not a chemist and it is definitely the subject that I studied the least but now my hand has been forced and I am learning it. I have a whole O Chem textbook and a penchant for efficiency and optimization. This sulfuric acid will allow me to revive dead batteries and make sure they don't end up harming people, creatures, the environment and the future. Thanks.

[@BlueMoonshine]

If you have access to sulfuric-acid-based drain opener, you can purify it, which is a faster way of obtaining sulfuric acid. The sulfuric acid you get after purification is 98%, then you can dilute it according to your needs. I show how to do it here: kzbin.info/www/bejne/moHahZ2aa8ScaNk

[@sergioalvescordeiro9495]

Neste caso, você sempre deve retirar o catodo primeiro e só depois desligar a fonte. Do contrário, o ácido reagirá novamente com o cobre.

[@BlueMoonshine]

No! Sulfuric acid does not react with copper!

[@sergioalvescordeiro9495]

​@@BlueMoonshine Desta eu realmente não sabia! Então por favor me diga! Como é produzido o sulfato de cobre??

[@BlueMoonshine]

@@sergioalvescordeiro9495 You can make CuSO4 by electrolyzing H2SO4 with a copper anode. Then, the copper will dissolve. But the point is that if you don't apply a voltage, H2SO4 will not dissolve copper. You can also make CuSO4 from Epsom salt and no sulfuric acid, as I show in this tutorial: kzbin.info/www/bejne/jniop2yIfNephLs

[@sergioalvescordeiro9495]

​@@BlueMoonshine E se eu colocar óxido de cobre em ácido sulfúrico, será que funciona também??

[@BlueMoonshine]

@@sergioalvescordeiro9495 Yes, sulfuric acid reacts with copper oxide to give copper sulfate and water.

[@Pootycat8359]

Don't discard that black scale that forms on the Pb electrode. PbO2 is an excellent oxidizer! (hint, hint....)

[@vitamin9165]

?

[@Pootycat8359]

@@vitamin9165 When mixed with a reducing agent (ie, fuel), such as S, P, Mg, Al, etc, makes flash powder.

[@pemlife9148]

i doubt whether the corresponding charge is 34740 C not 17300 C ?

[@BlueMoonshine]

I gave a detailed calculation. I could certainly have made a mistake, but then you have to explain where the mistake is, or at least give a derivation for the value you find.

[@nakotorni5231]

@@BlueMoonshine Electron charge is 1.6022x 10exp-19As and 1 mol is 6.0221x 10exp23 pcs . Multiplication gives 96490 As/mol. Multiply by 0.36 and get 34735 As. By the way the video is excellent.

[@xavierdemers-bouchard2747]

Regarding the scaling up, couldn't you just add a few rounds of copper sulfate to the dilute sulphuric acid and continue the electrolysis?

[@BlueMoonshine]

This is the same as using a higher concentration of copper sulfate from the very beginning. If the concentration is to high, some secondary reactions will take place, which will pollute the sulfuric acid. The reaction equation that I gave is valid only for low concentrations. I don't know what the limit is, but it can probably be calculated.

[@jamessargent9981]

I work right in a home depot and I never ever seen anything at all with sulfuric acid in it everything we have in drain opener is either sodium hydroxide potassium hydroxide or combination of both.

[@BlueMoonshine]

It haven't been able to find it at the home depot lately, but the last bottle I bought was definitely from there. I even still have the bottle because I use it to store my homemade acid.

[@jamessargent9981]

I think Lowes has sulfuric acid drain opener though at least that what it said after doing online basic search lead metal where I'm at hard to find in stores due to its toxicity but of course if you take proper safety precautions it all perfectly harmless.

[@jamessargent9981]

@@BlueMoonshine wouldn't storing the acid in a plastic container versus a glass container increase the impurities in it darken the acids color ?

[@BlueMoonshine]

@@jamessargent9981 Not if you use the right plastic. Concentrated sulfuric acid can safely be stored in HDPE plastic bottle. It doesn't react at all with it.

[@gaulix69]

​@@BlueMoonshine Not really.since 3-4 years, I had two 1liter bottle containing 98% H2SO4 drain opener stored in original HDPE, and the two begining to passing through the plastic on the botoom corner, because I think the plastic is thinner here, and long storage of H2SO4 withot movement concentrate the H2SO4 on the bottom by gravity... I just pass in urgence the H2SO4 in safer 1 liters lab pyrex bottles with roded glass corks. when I put the acid in the glass bottle I seen that the liquid in the bottoom was extremly thick. Howerver, after a long storage in the HDPE, my acid still water clear.

[@ChristmasEve777]

7:18 hmmm why not stir it with your copper electrode?

[@BlueMoonshine]

That's perfectly fine too. I like to use a glass rod because I stir the solution also while the electrolysis is in progress, and I don't want to move the copper electrode in order to avoid having to readjust the intensity of the current.

[@ChristmasEve777]

@@BlueMoonshine Ahhh that makes sense! Hey, I was also thinking about your power supply. I know this was 2 years ago. You may have changed your method by now. But I think a constant current power supply would work wonderfully in your case. I use one for my PEM hydrogen generator. As the temperature of the water increases, it draws more current. Because of this, I limit the amps to 20. You could use CC to limit yours to 0.5.

[@BlueMoonshine]

@@ChristmasEve777 Yes, I have a current generator now, much more convenient.

[@jonathanseagraves8140]

More straightforward technique for people in the US: Buy the 5 gallon box of battery acid from the auto store (its in the back, you have to ask for it) acquire a borosilicate flask (NOT ALL GLASS WILL WORK it MUST be a suited for this purpose). Boil said battery acid in said container on a hotplate (outside the house and add broken pieces of ceramic in the battery acid to keep it from bumping violently

[@BlueMoonshine]

Another method is to simply purify sulfuric-acid-based drain opener, as explained here: kzbin.info/www/bejne/moHahZ2aa8ScaNk

[@jonathanseagraves8140]

@@BlueMoonshine Not always, but sometimes, manufacturers add a buffer to drain openers. So if that is undesirable for whatever reason, it should be taken into account.

[@BlueMoonshine]

@@jonathanseagraves8140 That is precisely why I show how to purify it: kzbin.info/www/bejne/moHahZ2aa8ScaNk

[@topspeed250k5]

Dilute sulphuric acid can be concentrated by freezing.The water will freeze, but not the acid so what you pour out will be acid, leaving the water ice block behind. Do the freezing in a plastic bottle, like a softdrink bottle. Otherwise the expansion of the water as it freezes will crack the bottle apart and concentrated acid will flow out into your freezer...not good.

[@BlueMoonshine]

That's something to try, but I doubt you will reach a concentration of 98% with this method.

[@amiralgadab]

🇩🇿👍👍👍👍

[@subcritter]

great, jesse get me my sulfuric acid resistant bucket.

[@dolorescunningam9262]

What does that mean?

[@BlueMoonshine]

I have no clue!

[@subcritter]

breaking bad reference

[@davidwatson7604]

Algo boost! Generally speaking Lana Del Rey Plaza Del Rey

[@BlueMoonshine]

What does that mean?

[@davidwatson7604]

@@BlueMoonshine Just boosting the algorithm, enjoyed the content.

[@BlueMoonshine]

@@davidwatson7604 Thanks!

[@davidwatson7604]

@@BlueMoonshine Thank you, kutgw.

[@thevabhas7225]

please put in screen about ingredients.. sir..

[@BlueMoonshine]

Ingredients? There is just distilled water and copper sulfate.

[@SciDOCMBC]

According to my calculations it should be around 82-83% sulfuric acid.

[@valrousseau7039]

83% is precisely what I said at 46:00.

[@SciDOCMBC]

@@valrousseau7039 Why are you so dismissive? Actually, I just wanted to confirm your calculation. Apparently that's not allowed here. 😱

[@valrousseau7039]

@@SciDOCMBC I am not being dismissive, but saying "According to my calculations it should be ..." suggested that you found something that contradicts what I found.

[@SciDOCMBC]

The calculation of the density cannot be correct coz the sulfuric acid was full of precipitation.

[@BlueMoonshine]

"Full of precipitation"? Slightly polluted doesn't mean full of pollution. The other tests proved that we really have concentrated sulfuric acid. I agree that the resulting estimate might be slightly off, but it is an estimate.

[@abdalrahman3766]

I use this method to produce sulfuric acid, but at the beginning of the analysis a light colored solid copper forms on the negative electrode, which affects the analysis. I don't know what the reason is. I have to clean the cathode every few minutes for half a day to a day, and then a soft, dark copper forms, and the analysis is successful. No, I understand why this is made of copper. Is this due to the high percentage of copper sulphate in the water? Because I dissolve one kilogram in approximately two liters of water. If you can help me, I will be grateful

[@BlueMoonshine]

I'm not sure what you mean by "the analysis". The analysis of what? Anyway, it is perfectly normal that copper forms on the negative electrode. Actually, it wouldn't be normal at all if it wasn't. Did you even watch the video? This is explained with all the calculations.

[@abdalrahman3766]

@@BlueMoonshine I use Google Translate to write in English. I mean, solid, light-colored copper is formed when copper sulphate is electrolyzed. This copper causes a problem as electrolysis stops producing copper on the negative electrode and this causes a delay in the production of sulfuric acid

[@BlueMoonshine]

@@abdalrahman3766 I don't see why the copper being deposited on the cathode would stop the electrolysis, since the cathode is already made of copper. Did you try to use the same concentration of copper sulphate that I use in the video?

[@paulcohen1555]

PLEASE buy a proper camera stand!

[@BlueMoonshine]

Alright! Maybe if I get enough donations for my work.

[@paulcohen1555]

@@BlueMoonshine The chemical equations are amazing. From where you have all the knowledge?

[@BlueMoonshine]

@@paulcohen1555 I'm a university physics professor. There is a little bit of chemistry involved in my Thermodynamics course.

[@katietaylor4452]

So damn slow. 10 minute video stretched to 40

[@BlueMoonshine]

There are people who just want magic recipes without understanding anything of what they are doing, and others who want to understand. I don't care about the formers.

[@bearkawiboy6246]

Don’t watch it then dumb ass! It was your choice to do so.

[@unaeruditi]

I don't recommend this video because he didn't completely go through the math teach you how and where he got the numbers from. Molecular weights are different from the copper and the acid. Too much his left buy some gin and inference to make such a dangerous chemical where people can get hurt.

[@BlueMoonshine]

What do you mean i didn't go completely go through the math?

[@dolorescunningam9262]

That is the dumbest and most dishonest comment ever! This tutorial is one the most detailed one among other similar one. You're just a troll!

[@bearkawiboy6246]

Stop being a ignorant troll. If you don’t like the video then don’t watch and go back to your bean bag chair in your mom’s basement

[@ddsdsa2939]

Or to buy battery car acid wich is chep around 2 eruo for 1 litre wich is 40% sulfuric acid and you must only boil to concentrate, this is cheapest way to get easy and quick sulfuric acid

[@BlueMoonshine]

That depends where you live. And with all car batteries becoming non refillable, it becomes (or will become) harder to buy some electrolyte. But I agree, if you have access to sulfuric acid like that, then this is an easy solution.

[@ddsdsa2939]

You can buy so3 and disolve in water to get sulfuric acid

[@user-lb8do4ew6k]

Yeah, I'll just run down to the corner store & pick some up in the Sulphur trioxide aisle... 🤦‍♂️

[@gaulix69]

​@@user-lb8do4ew6k ​ @B Hi, what is the uses of the SO3 in your corner store?

[@goranaxelsson1409]

@@gaulix69 It is used for irony. ;-)

[@ddsdsa2939]

A lot of work for 10 ml

[@dolorescunningam9262]

The amount of work is basically the same is you scale everything up! Also, people in some countries don't have access to sulfuric-acid-based drain opener, or other simple means of making H2SO4. So this option stands out as the best for them.

[@ddsdsa2939]

@@dolorescunningam9262 yes but have battery car acid wich is cheap

[@stephendauncey1062]

Not in Australia. Drain cleaner here is Sodium Hydroxide and battery acid is not readily available.

[@BlueMoonshine]

And yet, this is how I made the sulfuric acid I needed to make nitroglycerin: kzbin.info/www/bejne/f3-4i5elfMl5bJo

[@gaulix69]

​@@ddsdsa2939 In all european countries the EU ban the H2SO4 at a conc higher to 15%. this mean drain openers 96-98%, rust remover 50% pool PH reglator and car battterie acid 30% isn't avalaible since 21 fev 2021. this is a real drama. the only thing that you could find is 15% h2SO4 for the price of the precedent 30% conc.. and drain opener with 20% conc HCl sell to the precedent 98% drain opener's price. they are stealers