How To Make PURE Copper Sulfate From Epsom Salt

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In this video, I show to make copper sulfate from Epsom salt. The copper sulfate obtained is then purified by re-crystallization.
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#Copper #Epsomsalt #HowToMake

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Опубликовано:

15 ноя 2021

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Комментарии : 146

@cranialconstruction2218 Год назад

Excellent video! Very clear instructions with a successful outcome. Thanks you!

@valrousseau7039 Год назад

You're welcome. Please, share it!

@R462venom Год назад

Thanks for the video tutorial! I didnt know I could do this! Just a note, you can evaporate the solution faster by using a container with a high surface area. A tall thin container will evaporate much slower than a shallow wide container of the same volume.

@valrousseau7039 Год назад

Yes, that's true. Thanks for reminding me of this!

@peterolsen9131 8 месяцев назад

i use one of those big pyrex bowls from a turbo-oven with a broken powerhead, nice big cheap pyrex bowl is great for crystalization processes and repurposed broken appliance is green!

@TheMaskedRacoon1 Год назад

Cool!

@bearkawiboy6246 Год назад

Great video

@BlueMoonshine Год назад

Thank you, please share it! Also, you may want to check my new tutorial on how to make 95% nitric acid at home from household items: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NHBDXtn7pjA.html

@hamed8555 6 месяцев назад

Nice presentation 👍

@BlueMoonshine 6 месяцев назад

Thanks. Please, share the video.

@NaraYani8 Год назад

Gud vid for hobby chemists

@BlueMoonshine Год назад

Thank you! Please, share it!

@wakeupartistsofold7918 Год назад

great setup and explanation!! Thanks for taking us through the process. May The LORD bless you and keep you.

@BlueMoonshine Год назад

Thank you! Please, share it on your social network!

@64-bit63 2 года назад

Nice i came from r/chemistry

@BlueMoonshine 2 года назад

Thanks! Please share on your social network, and check my other tutorials.

@Lightharvest-dd2bf 8 месяцев назад

There should be more chemistry principles taught in grade school!! No need to wait till high school. Safety-wise, not all learning has to be hands-on.

@henrym.5884 8 месяцев назад

Thanks.

@BlueMoonshine 8 месяцев назад

You're welcome. Please, share the video!

@shahramarya6417 Год назад

Nice👍

@BlueMoonshine Год назад

Thanks for the visit

@rignoboy3993 11 месяцев назад

Very noice video. Does it matter if the clay pot has a protective coating though?

@BlueMoonshine 11 месяцев назад

Yes, I believe it won't work with a protective coating. You want the irons to be able to go through.

@rignoboy3993 11 месяцев назад

@@BlueMoonshine thanks

@TheStigma Месяц назад

Very cool. The crystallization part could also be used to purify any impure copper sulfate you source if there are any additives. Am I right in assuming that the crystallization will happen faster the more seed surface area you provide? This type of ion bridge is really interesting. What would they use in a laboratory setting? Is there anything in particular to look for in a pot? Will any un-glazed ceramic work, or just specifically clay? I don't know too much about pottery materials :P

@BlueMoonshine Месяц назад

The crystalization speed will mostly be affected by the surface of the container. The larger the container, the faster the water will evaporate, hence the faster the copper sulfate will have to crystalize in order to prevent an over-saturation of the solution. I really don't know what they use in laboratory. They probably have some specific membranes that select a particular species of ions (charge and size). The clay pot seems to let all ions go through, but it prevents large volumes of fluids from mixing up.

@BlueMoonshine Месяц назад

Using a similar setup, you can turn Epsom salt into sulfuric acid if you replace the copper electrode by a lead-dioxide electrode, as I show here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-l9ifS3ubiBc.html

@chuckjim5921 Год назад

Quick question for clarification purposes. Crystals formed by bonding to the seed on the thread. If this is a first time attempt, with no seed, do you just place thread from a pencil into the compound liquid to initiate crystallization? Thanks and awesome video! 👍

@BlueMoonshine Год назад

For the first attempt i don't put anything in the liquid. I just wait several days, the water evaporate and the solution becomes over saturated with copper sulfate, so the crystals will spontaneously appear at the bottom.

@ryanallen1014 Год назад

While the method Blue Moonshine uses to get a starter crystal is viable; another way would be to dip your stir rod into solution and then hold it in the air until the liquid evaporates leaving tiny "starter" crystals in its place. Then just scrape them into the solution and you'll be growing crystals. This a much faster and more effective way in my opinion.

@EagleOxford Год назад

@@ryanallen1014 Seems Legit. I'm just starting another batch from scratch, so it's a good time to try this. I don't see why it wouldn't give you a bit of a jump on the whole process. If so, I grow Many types of crystals, and use sound to alter their growth, or suspended things like strontium(glow stuff) in them that otherwise gets pushed out. You may be doing me quite a favor here, and WTF didn't I think to do this, I'm usually the "creative solutions" guy.🤷😅 Thanks bub!

@ryanallen1014 Год назад

@@EagleOxford glad I could be of help. I've never heard of altering crystal growth with sound. I can see how it would work though and sounds pretty badass. Is it part of your job or doing it as a hobby? Ive always loved chemistry, but never had a practical use for it until I discovered....e-scrapping. I now make my own acids, strong bases (hydroxides), test solution (stannous chloride) and stuff like ferrous sulfate to precipitate gold out of solution. Pretty basic reactions for the most part but still fun to me and have learned quite a bit along the way.

@sunoncream1118 Месяц назад

epsom salt to copper sulfate: destroy copper bar to remove magnesium in the pot, and get the blue thing, then blue thing to sulfuric acid = clean clay pot add fresh water, put some titanium Pt coated mesh inside the pot and inverse polarity ... now ure coper plating the copper bar .. sulfur left behing end up as sulfuric acid in the pot

@clearz3600 11 месяцев назад

Great video. I just bought 2KG "100% pure copper sulphate" from eBay which is in no way close to being pure so I need to find a way to purify it without owning a chemistry lab.

@BlueMoonshine 11 месяцев назад

So, make a saturated solution of impure copper sulfate, and let it crystalize. As shown in the video.

@Lightharvest-dd2bf 8 месяцев назад

Chemicals, including CuSO4, that kill algae or fungal disease, are toxic to animals, i.e. humans. This is NOT a health supplement (1gram or less is toxic, and adding copper supplements to your diet often overwhelms needed zinc. Just eat a healthy diet!) Avoiding excess algae in water? Try keeping more animal waste out of it. Fresh algae growth is often beneficial; dying algae and cyanobacteria are bad.

@PlentyOfColor Год назад

Wouldn’t it work better to have the solution only inside the flower pot and have distilled water on the outside(where anode is) so that only so4 ions will flow though resulting in less impurities? Although your product already looks pure enough

@BlueMoonshine Год назад

I believe the SO4 ions are too big to go through the pot.

@PlentyOfColor Год назад

@@BlueMoonshine They flow fine when making sulfuric acid from epsom salt

@BlueMoonshine Год назад

@@PlentyOfColor Ok. good to know then.

@harrybrown7351 2 года назад

Terracotta pot is up there with best inorganic semipermeable membranes you can get at home

@BlueMoonshine 2 года назад

I believe this is what I'm using in the video.

@CatboyChemicalSociety Год назад

Iononmer concrete is the true best. made of 1:3 ratio of cement powder and plaster of paris or 1:3 ratio of cement powder to ground up deionizer resin.

@kunaldhar6713 2 года назад

I Tried this At Home, And It Worked, Thanks for the video. but 1 Problem the mgso4 in claypot(Negitive) is turning blue, can Anyone Help?

@user-lb8do4ew6k Год назад

Try using a graphite cathode

@kunaldhar6713 Год назад

@@user-lb8do4ew6k I am not haveing all that graphite to spare and clean the solution

@user-lb8do4ew6k Год назад

@@kunaldhar6713 the cathode doesn't degrade, the anode will but only if the voltage is set too high

@andrealfiansah9432 11 месяцев назад

How copper is disolving when. Copper has lower Reactivity than magnesium? Is it gold also disolving in copper sulfate with electrolysis?

@BlueMoonshine 11 месяцев назад

Copper is dissolving because it is oxidized at the anode (it loses electrons).

@po-0k7 4 месяца назад

if you are in the USA use a bit less that have of a cup

@-taba8777 2 года назад

I have the exact same setup as you, but for some reason I only make unsoluavble copper hydroxide/carbonate, do you know what I am doing wrong? maybe higher or lower concentration of magnesium sulfate?

@BlueMoonshine 2 года назад

Maybe you used a current too high. This can generate secondary reactions.

@-taba8777 2 года назад

@@BlueMoonshine yeah will try that but it isnt a secondary product it is the only product, besides the hydrogen bubbles and magnesium hydroxide of course

@CatboyChemicalSociety Год назад

your membrane is leaking thats why. plug the hole at the bottom of the clay pot or use something else as a barrier IE something with ion exchange properties like ionomer cement. 1:3 ratio of cement powder to gypsum/plaster and casted into a dam/wall then 2 solutions on both sides.

@hulkgqnissanpatrol6121 Год назад

@@CatboyChemicalSociety I used plain old candle wax

@ryanallen1014 Год назад

@@CatboyChemicalSociety can also make a make a membrane from tyvek soaked in fresh hot agar agar that's had non-ioduzed table salt added....aka the salt bridge.

@Berghiker 2 года назад

Where did the magnesium go to?

@BlueMoonshine 2 года назад

On the cathode and in the clay pot.

@8h24a10s Год назад

can i use normal salt insded

@valrousseau7039 Год назад

No, there is no sulfate ion in normal salt, so no way to make copper sulfate from it.

@dogodogo5891 Год назад

very interesting did teracota will eventually corrode?

@BlueMoonshine Год назад

Teracota?

@dogodogo5891 Год назад

@@BlueMoonshine flower vases

@BlueMoonshine Год назад

@@dogodogo5891 No they won't corrode.

@dogodogo5891 Год назад

@@BlueMoonshine i just think if probably high concentration OH around vase will make them corrode cause i remember certain ceramic will dissolve at high alkalinity

@BlueMoonshine Год назад

@@dogodogo5891 I don't know, but the reaction equations that I give are valid only a low concentrations. At higher concentrations, some secondary reactions can take place. So, you should keep the concentrations low during the electrolysis, then concentrate the final product by evaporating the water.

@ibrahemaloqaby1455 2 месяца назад

What the composition of Epson salt

@BlueMoonshine 2 месяца назад

MgSO4, it is explained in the video.

@salvinusjerin-dn7op Год назад

Can we use a clay cup without hole

@BlueMoonshine Год назад

Sure, we don't want the hole, that's why I put some resin in mine!

@ClownWhisper 8 месяцев назад

You need an evaporation dish using a cylinder like that is probably the worst way to allow evaporation you need as much surface area as possible exposed to air. Any simple bowl will do or even a tupperware container, anything would be better than the cylinder

@BlueMoonshine 8 месяцев назад

Yes, that's right!

@ceasargaming9041 Год назад

hey! I did a similar reaction with a similar setup, but my anode produced a mix of copper and magnesium hydroxides. Any idea why? Also my cathode solution of copper sulfate remained very weak. After a point it looks like copper sulfate production stopped. not sure why this happened.

@BlueMoonshine Год назад

Did you use a voltage too high, or a different concentration of the Epsom salt? If you did, that could generate secondary reactions.

@ceasargaming9041 Год назад

@@BlueMoonshine hmm mayve, i was using an 18V battery not a power supply...that could be why

@BlueMoonshine Год назад

@@ceasargaming9041 Yes, 18 volts seems to be a lot, although it depends on the distance between the electrodes.

@BlueMoonshine Год назад

@@ceasargaming9041 So, if you can't control the voltage, at least can you insert an ammeter and use a separation between the electrodes so that the current is not greater than 1 amp?

@ceasargaming9041 Год назад

@@BlueMoonshine hmm maybe. I dont know too much about electricity and electronics tbh. im very new to electroysis.

@YY-ei7wk Год назад

do you make nitrate from food salt

@valrousseau7039 Год назад

Food salt is NaCl. There is no nitrogen in it.

@jakkimanzitti5031 Год назад

OK Walter White get making the baby blue.😅

@kolejowydolnyslask5684 Год назад

Will it work with Ammonium sulfate sollution?

@BlueMoonshine Год назад

I think so.

@mw10259 8 месяцев назад

WHAT CAN YOU DO WITH COPPER SULFATE ?@@BlueMoonshine

@Berghiker 2 года назад

Is the magnesium formed, usable?

@BlueMoonshine 2 года назад

Probably, but I don't know yet how to purify it or what to do with it.

@Lightharvest-dd2bf 8 месяцев назад

@@BlueMoonshine Interesting, but if a fairly pure magnesium was achieved, it would be highly flammable?

@TheMilkDistributor 7 месяцев назад

@@Lightharvest-dd2bfyes

@henryj.8528 Год назад

What happens to the residual MgSO4 still in solution?

@BlueMoonshine Год назад

The concentration of the residual MgSO4 was low, so it didn't crystalized and stayed in solution. If I had waited longer, water would have evaporated and it eventually would have crystalized too.

@henryj.8528 Год назад

@@BlueMoonshine Thanks. Have the setup running now. Fairly slow process. Seems to be working...

@BlueMoonshine Год назад

@@henryj.8528 Good. Let me know how it turns out!

@Berghiker 2 года назад

So is there one small hole at the bottom of the pot?

@BlueMoonshine 2 года назад

No, why?

@Berghiker 2 года назад

@@BlueMoonshine Because these plant clay pots usually have a small hole at the bottom to let out the water when you water the plants.

@BlueMoonshine 2 года назад

@@Berghiker Yes, but as explained in the video, I filled the hole with resin.

@ryanallen1014 Год назад

Can you use a salt bridge for this?

@BlueMoonshine Год назад

I think so, but I never tried.

@ryanallen1014 Год назад

@@BlueMoonshine Thank you for such a quick response! I'm going to try it this morning. I was partially successful with no bridge or membrane, but the solution only turns that turquoise/blue and even after a reduction it still will not crystalize out of solution. I'm guessing it's not saturated enough but I do not see how as I had to hear it considerably and add more distilled water to clear up the solution it was so saturated.

@sumgai7 Год назад

@@ryanallen1014 It's a little hard to understand what problem you had - but when you're talking about *adding* distilled water because "the solution was so saturated", and previous comment about "guessing it's not saturated enough" -- wait, *whaaaaat?*. Something's backwards, here: you get crystals when you take a solution (let's just say table salt in water) and let the water evaporate, i.e. GO AWAY (slowly) -- the remaining salt will begin to crystallize as the water leaves. AND: (pay attention) - that means the solution becomes more and more "saturated"! Think about it: ultimately, all the water's gone, only the crystal remains -- that's not just 100% saturated, but past super-saturated. You may want to look up a bunch of RU-vid vids on "making crystals" - something's seriously missing in the way you asked the question.

@ryanallen1014 Год назад

@@sumgai7 I am confused by your statement....I was asking if using a salt bridge would work and that when I tried the electrolysis without one I formed some copper sulfate solution; but the solution was not concentrated enough to produce crystals. So I either need to evaporate more of the solution or let the reaction run longer. I fully understand what saturation means. Thank you for your response and sorry for any confusion!

@mobmob5944 Год назад

@@ryanallen1014 you cant make copper || sulphate from magnesium sulphate (epsom salt) via electrolysis while having the electrodes shorting out at the solution due to not having a membrane. Membrane is there to prevent certain things from leaking and making contact and contaminating the whole experiment

@markhopper6754 Год назад

Is it profitable to get the copper out of magnisium sullfate

@BlueMoonshine Год назад

It depends in which country you live. In the USA, it is much cheaper and way faster to buy copper sulfate online. You can also find it at The Home Depot or Lowes as "Root kill". But there are some countries that prohibit the average citizen to buy copper sulfate. In that case, making it from Epsom salt is a good option.

@markhopper6754 Год назад

I mean extracting copper metal for scrap

@clearz3600 11 месяцев назад

There is no copper in magnisium sullfate. The copper comes from the metal anode which is already pure.

@Lightharvest-dd2bf 8 месяцев назад

@@BlueMoonshine Thanks! CuSO4 is toxic to plant and animal life. Is that why it's prohibited in some countries? Again, using the word "from" was misleading. Mark Hopper's question is an example of this misunderstanding.

@BlueMoonshine 8 месяцев назад

@@Lightharvest-dd2bf I don't know why it is prohibited in some countries. Maybe because it is easy to turn it into sulfuric acid? For the title, it is indeed misleading. I will think of a better one.

@hulkgqnissanpatrol6121 Год назад

I'm using what I think is copper wire but the solution is turning brownish does that mean it's NOT copper wire?

@BlueMoonshine Год назад

Is the wire clean? Did you clean it with steel wool? If you use copper wire, and a current similar to mine, the current might actually be huge compared to the area of the wire, so this could trigger some secondary reactions. You may want to either increase the amount of wire that is in contact with the solution, or decrease the current, and see if it helps.

@hulkgqnissanpatrol6121 Год назад

@@BlueMoonshineno I didn't clean it, it looked really clean so I didn't worry and didn't have the powder like some wire has. I'm using a car battery charger with 2x 12v 5w light bulbs in line to keep current around 0.21

@BlueMoonshine Год назад

@@hulkgqnissanpatrol6121 So, my only guess is that such a current is too large for the small area of a copper wire.

@hulkgqnissanpatrol6121 Год назад

@@BlueMoonshine it all worked great, the brown G was the impurities as you said 👍 thank you

@BlueMoonshine Год назад

@@hulkgqnissanpatrol6121 Great! I'm glad to hear that!

@jimcatanzaro7808 9 месяцев назад

You can make your own power supply using a old 12v transformer and a voltage board from China look it up on you tube I made it very cheaply on a board of wood and works great

@dolorescunningam9262 9 месяцев назад

What is more suitable in the present case is a current supply instead of a voltage supply, and I wouldn't be surprised if @BlueMoonshine is planning on making a tutorial on how to make one.

@vfromthaburg 2 года назад

Heaven and hell @10:02

@VanillaAttila Год назад

Can I make copper sulphate from soaking copper in: 500 ml water 50 ml hydrogen peroxide 1 oz citric acid

@BlueMoonshine Год назад

No! Neither citric acid nor hydrogen peroxide contain sulfur atoms, so there is no way they could form the sulfate ions that constitute copper sulphate.

@VanillaAttila Год назад

@@BlueMoonshine ok that makes total sense. What if I put elemental sulphur in the beaker too? I'm trying to make a fungicide for my fruit trees

@BlueMoonshine Год назад

@@VanillaAttila I don't know what adding elemental sulfur the mixture would do. But if you have some copper oxide (or if you can make some), you can do the following: Burn elemental sulfur in a sealed container. This will produce sulfur dioxide (SO2 ). Then you can bubble this gas into water, which will produce sulfuric acid. Once you have sulfuric acid, you can turn it into copper sulfate as described here: www.bbc.co.uk/bitesize/guides/zysdgdm/revision/3

@VanillaAttila Год назад

@@BlueMoonshine yeah I saw that one. I'm looking for a simpler solution. Since the water turns blue when I use citric acid I'm thinking the copper citrate could be an effective fungicide. I just don't know how to determine the potency of it since I'm just using copper mesh

@BlueMoonshine Год назад

@@VanillaAttila Why don't you simply make the copper sulfate solution from Epsom salt, as I showed? It is very easy and Epsom salt is cheap. You don't even need to turn the solution into crystals, I guess.

@Lightharvest-dd2bf 8 месяцев назад

This video was misleading because it says it's making copper sulfate FROM epsom salts--which contain no copper. We're a few minutes into this beautifully-spoken video, before we learn there are COPPER electrodes used--and this is the essential source of copper here! The epsom salts are the primary source of the sulfate. If you don't have the electrical equipment already, and your goal is to obtain copper sulfate, and the chemistry process is less important to you, it's probably less expensive to buy CuSO4 crystals at your hardware store.

@dolorescunningam9262 8 месяцев назад

The title used by Blue Moonshine might not be the best, but you are completely missing the point with your comment about the cost. The point of this video is (i) to provide a way of making copper sulfate to people who live in countries where this chemical is not available to everyone while Epsom salt is, and (ii) to communicate some knowledge about electro-chemistry. Many students (including mine) appreciate Blue Moonshine's pedagogical videos.

@notoxygen2904 8 месяцев назад

not pure copper sulfate, most of it is magnesium sulfate with just enough copper to give it a light color.

@jebbywaldorf2565 8 месяцев назад

That’s what I had thought but I wasn’t sure.

@RyanReaganarchangelry Год назад

BOTH BOWLS CONTAIN EPSOM SALT RED POSITIVE WIRE CONNECT TO A COPPER PIPE OUTSIDE OF CLAY POT AN BLACK WIRE ALSO CONNECT TO A COPPER PIPE INSIDE THE CLAY POT. (COPPER SULFATE)(blue)

@BlueMoonshine Год назад

So what? Why are you repeating something that can clearly be seen in the video? Is your comment intended to me, or someone else?

@cranialconstruction2218 Год назад

What are you saying then? In capital letters? This was clearly explained in the video.