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Electrolysis? Answered

I have been messing with electrochemistry lately, and had saturated some water with NaCl (table salt). I then placed two carbon electrodes into the solution and ran a current through it. To my surprise, the carbon dissolved and a dark brown powder formed in the solution, with gas bubbles rising from both electrodes until they were gone. Anybody know what is happening??

Question by pyrorower    |  last reply


What is it that affects the speed of electrolysis amperage or voltage? How much of it would I need to electrolyze 100 gallons in a reasonable amount of time?

Topic by Riley C    |  last reply

Electrolysis Materials

I have been looking at electrolysis a lot, and recently made one, but because I used copper wire it corroded straight away.  I have been looking at alternatives and titanium sticks out to me.  Currently cheap, $10 for 16 feet, and the conductivity is fairly good along with the corrosion resistance (high).  However, I haven't been able to find very much of anything stating that titanium works or doesn't.  Does anybody have any input, thanks!

Topic by Cody Heiser    |  last reply

seperate tank electrolysis

If I were to have 2 seperate buckets, one with ground and the other with something like 9 volts nothing would happen because the 2 bodies of water arn't connected. If I were to join the two bodies of water using a wire would electrolysis take place?

Topic by guyfrom7up    |  last reply

Electrolysis rust removal ?

Does anyone know anything about Electrolysis rust removal. I tried it today on an old drill bit as an experiment and it worked quite well but I was wondering how I could improve my system. I was wondering how the voltage, amperage and surface area of the anode affect the time taken and the quality of the part. Also is there anything else that Effects ( or Affects )  either of these these. I used 2 litres of water and 2 table spoons of soda crystals with a 5 volt 16 amp supply. When I perfect my method I will clean up a very old and rusty Lister D.

Question by monty324    |  last reply

HHO generator, Electrolysis? Answered

I recently made an hho generator, when i turned it on it started to release something green in the water what is that?? I used water and salt.

Question by RA productions    |  last reply

Anode and cathode metals? (For electrolysis)

I want to seperate some water to get Hydrogen to play with, so I made a little electrolysis device with a 12v power supply. The only problem is that I have no idea what to use as the anode and cathode! Could I just use screws? Or pennies or something?

Topic by Login258    |  last reply

Faster electrolysis of Copper Sulfate?

I'm trying to make copper powder and I know it can be done by electrolysis of copper sulfate solution with copper electrodes. The way I have to right now it's extremely slow so I was wondering how I could speed things up a bit. Im not using a power supply only a 20volt drill battery (because it turned out to work better somehow)

Question by CameronP33    |  last reply

Two questions regarding electrolysis. Answered

Okay; two questions regarding electrolysis. What should i use as an electrolyte? When I used salt, I got Hydrogen and Chlorine, and I want Hydrogen and Oxygen. Next, What should I use for my anode and cathode? I've heard of carbon rods and titanium rods, but i don't know where to get them from.?

Question by Ryan Cooper    |  last reply

Max voltage and current for electrolysis of water.

What is max value of voltage and current can be used for electrolysis of water to accelerate the hydrogen production rate within safety limit?

Question by SahilK75    |  last reply

I have a question about electrolysis...

Why doesn't it work when I put the anode and the cathode in two different container when I am separating hydrogen and oxygen from water in electrolysis...?!

Question by nicki0850    |  last reply

Voltage vs. Ampage (electrolysis of water) Answered

I want to electrolyze water.  I am currently using a 12V adapter power supply with graphite electrodes.  I want to increase the process.  Which would do it better: more voltage or more ampage?  I suppose more of both is best.  Thanks in advance for answering my question!

Question by Valos_Cor    |  last reply

How to produce electolyzed water?

Hello Members, i want to produce electrolysed water (by electrolysis) where end product is HypoChlorous (chlorine) by adding NaCl...., which can be used as sanitizer,  i tried used regular 220V current but it does't bring any effect. i want to know which is the optimum Voltage and amperage..., and suitable electrode for electolysis?

Question by vinayanand    |  last reply

How can I cover aluminium or other metals with copper oxide using electrolysis? Answered

I am looking for a way of getting CuO (red oxide) over another cheap metal using less copper as possible

Question by alessiof76    |  last reply

whats better for electrolysis, 12vdc or 24-70vac?

Hello, i am wanting to make large amounts of potassium and sodium chlorate and perchlorate, through electrolysis, but am a little stumped at my current position right now, i am clueless as to what is better, a 12v dc @500ma battery charger , to electrolys salt, or, a christmas lights power supply station wich gives out 24-70 volts ac, at something around 1-3 amps. though some research i have not been able to determine wether ac is better and safer than dc or vice versa, when making chlorates in electrolysis. i have heard that ac apparently is better because it generates heat which allows for a faster reaction than dc, but also ive heard ac power at those voltages may just jump from one electrode to another through the air, and not do any electrolysis at all. whereas dc is just weak. someone pleas ehlp me out!

Question by oldmanbeefjerky    |  last reply

elictrolisis will make aluminum powder? help please

I have read about disolving zink or magnesium in acid and colecting it on a electrode as a salt threw elictrolisis. would this work with aluminum ? in new zealand it is hard to buy aluminium powder for thurmite so would like to make my own. i have already colected a usable amount of iron oxide from rusty steel using elictrolisis.

Topic by glassspider2142    |  last reply

Does Chromesteel disolve during copper-electrlysis with Coppersulfate?

Hi I want to refine some copper and change it to copper-dust-particles by means of copper-electrolsis in a bath of disolved coppersulfate. Since my copper is in smaller bits id like to have some sort of etallic basket to hold the scraps. I think i would like to go with a chromesteel-mesh i connect to the power. The mesh/basket contains my scrap-copper and the anode-sludge can pass thru the basket... The basket (anode) and the copper-cathode are connected to the powersupply. Now my question: I think the chromesteel shouldnt get disolved as long as i dont crank up the voltage too high or let it run without sacrificial copper at the cathode. If i would do that, it would start to split the water used in the solution and produce H and O. Bad. Also would slowly eat away the metals too. Bad^2 But as long as i have copper to be disolved at the cathode, it shouldnt do anything to my chrome-steel-basket, right? Thanks for inputs from someone who knows it better than i do :)

Topic by Orngrimm    |  last reply

High quality and safe nickel plating question? Answered

Hi. There is instruction on this address how to make high quality and safe nickel plating,and i have some question about that. When he showed to add salt to the vinegar in order to make the vinegar  more conductive,isnt the salt become Na and Cl ions? Will the Na positive ion stick to the negative nickel plate?(while making the nickel solution-step 3)? Will the Na positive ions stick to the item that we are plating besides the nickel( in the plating process-step 5)? will it spoil the object that we are plating with nickel? I see in the supermarket vinegar which said"synthetic vinegar" 5% acetic acid,water.(for food).Is it ok? when he said(step 4)"You can further clean your object by reverse electroplating (ie "electrocleaning") it for a few seconds.  Hook your object up to a negative voltage, a WIRE to the positive voltage, and drop them both in a vinegar salt solution for 10-30 seconds.  This will remove any left over oxidation" What wire did he mean? and the last one:how pure is the nickel should be?because i notice that most of the nickel sheet are about 99%-99.7% it ok? can i use pure nickel strip(97% pure nickel)that is used for battery welding? Thanks in advance.

Question by xchcui    |  last reply

200 kl/day waste water from dye industry treatement by electrolysis No of plates electrodes & dc power requirement


Topic by pcshah    |  last reply

pee power: anyone here tried electrolysis of urine to produce hydrogen?

A few days back I read an article on this. just google.

Topic by huzefa    |  last reply

HHO and you!

Ok, so hho has become the new fad in the mpg race, but is it really effective?  Conservation of energy dictates that the energy required to separate water in to its base components is equal or greater to the energy released during its reconstitution.  The key to making HHO a viable source of additional fuel would be utilizing the waste heat from the engine to provide the electricity needed. TEG's + exhaust manifold + water = ? Discuss!

Topic by kretzlord    |  last reply

HHO generator with iron electrodes

Hello Everyone, I recently found out about Sodium Hydroxide as an electrolyte. I have read that it does not affect the electrodes like salt or baking soda and it does not create any weird gasses like chlorine. The main reason for using stainless steel electrodes is to prevent this corrosion, but since sodium hydroxide does not create this corrosion, can I just use the much cheaper iron or regular steel as the electrode plates? Thanks in advance  

Topic by JStuyfzand    |  last reply

Very long winded question about Trevor Baylis Eco stove? Answered

Years ago I saw a documentary about an African country which most villages and towns use bottled gas to cook. One guy had made a stove from an empty gas container that split water, using a car battery, into a usable flammable gas. It was very basic; the electrodes were nails and the amount of electricity it used was minute, (shown by a very dim bulb in part of the circuit); it worked very well, just like a normal gas stove. The guy had been kidnapped three times and his family threatened by the people who make their living from selling gas. Here was Trevor Baylis, (The man who, in 1991, saw a programme about the spread of Aids in Africa and set about developing the wind-up radio), with the guy using the stove to make a meal. Trevor Baylis was going to take this project on and allow everyone to have a very cheap and eco -friendly cooking fuel. I can't seem to find any info on it using Google....So my question is: Did this ever happen? Thank you.

Question by FriendOfHumanity    |  last reply

Can I use rectified mains power for electrolysis? Answered

Assuming that I properly insulated the system, would it be practical to use mains power in a hydrogen generator? It seems to me that it should be feasible, but I've heard from some people that hydrogen generators work better at lower voltages. If I could use mains power, would I have to limit the current in any way?

Question by Shagglepuff    |  last reply

a good way to capture hydrogen and oxygen from electrolysis?

Well I've managed to actually seperate the hydrogen and oxygen from water, but I'm having alot of trouble capturing it. I want to capture the hydrogen and oxygen together, in one container. Anyone have any ideas? thanks, Joe  

Topic by thecoonskin    |  last reply

how should i set up an electrolysis cell in order to convert magnesium sulfate into sulfuric acid? Answered

hello, after finding out copper sulfate is expensive everywhere, ive decided to try making my own, from sulfuric acid which i intend to make form magnesium sulfate, aka epsom salts. i am going to try and react copper oxides with any formed sulfuric acid then crystalize it and remove it, but, im not exactly sure on how i should set up this cell, to ensure the formed magnesium oxide/hydroxide doesnt react with the sulfuric acid again, as well as what the best voltage/currect would be to minimise polution/ errosion from my lead electrodes (just plain old lead, i plan on forming lead dioxide in this reaction also). any help would be greatly appreciated, also whoever solves my problem will get a best answer form me.

Question by oldmanbeefjerky    |  last reply

Sodium Chlorate production other ways?

Sodium chlorate production without the need of keeping the solution at around 50-70°C from  the electrical power used for electrolysis?  sodium chlorate production besides having to heat from amperage the sodium chloride solution and electrolysis then would a catalysis to help with oxygenating the solution like instead of water use 3% hydrogen peroxide or manganese dioxide or ever ammonium nitrate and yield sodium chlorate using electralysis with out needing to keep the solution at 50-70°C? 

Question by symboom    |  last reply

An Old Electrolyisis Presentation

This is an old Powerpoint presentation I made in fifth grade (and yes, I know, it has some incorrect info and several errors).

Topic by puffyfluff    |  last reply

How to store hydrogen under pressure

I've made several hydrogen generators via electrolysis, but every time I failed to store the generated hydrogen under (some) pressure. In this-> video they used an emptied fire extinguiser to store the hydrogen. The only problem with this is that they use a chemical reaction to generate the hydrogen whereas I want to use a renewable source (electricity).  I have a compressor so I could use that to generate the pressure. Has anyone got any ideas on how I could store hydrogen under pressure? Thanks

Topic by selujtje    |  last reply

How do you make iron oxide?

I was wondering how do you do it by electrolysis.

Question by your dog    |  last reply

Removing rust from the inside of a motorcycle gas tank using the electrolysis method? Answered

Which is better for removing rust from the inside of a motorcycle gas tank using the electrolysis method? Steel anode or carbon graphite anode? I have tried both. I like the carbon graphite better. It seems to be a cleaner process and to work just as good as the steel anode. Should I use 12 volts or 3 volts? Does a pulsating DC work better than a continuous DC? What is the best amperage?

Question by Goldwingracer    |  last reply

Can I have flowing liquid through multiple separated electrolysis cells, with those cells in series? Answered

Hi, my question is a curious one regarding electrochemistry. I have multiple electrolysis cells, with some separation between them but a constant flow of water passing through each of them in turn. Since electrolysis cells like this tend to require a current-limited power source and don't end up dropping much voltage per cell, I wanted to electrically connect the cells in series. This way, I could use a single power supply in current-control mode and not have multiple supplies fighting each other. My assumption that individual power supplies would end up fighting each other is based on the fact that the water is an additional electrical path that can allow current to bypass a given electrode. Using one power supply and having the cells in parallel would not be a problem as long as the current through each cell balances out on its own, however I feel that having one power supply across all cells in series would make current balance per cell a non-issue. My question is: Is it true that, with a power supply pushing a single current through multiple water electrolysis cells that have a torturous but admittedly connected water path, electrolysis efficiency will be the same as having separate power supplies on each cell?

Question by DavidB568    |  last reply

I volunteer to gather eyewitness info on water into hydrogen.

I'm a beginning engineering student and my dad is also an engineer. He is pretty skeptical and he recently told me of someone he knows who is using electrolysis to get better gas mileage in a Toyota pickup. I'm not sure, but it seems he is using secondary voltage to power the split and then burning it. He claims 60 mpg. If you guys would like to give me a series of questions/tests, I would love to go to my hometown and ask/perform them, then report back. Any takers?

Topic by bowakowa    |  last reply

if i electrolyse potassium chloride constantly, will i make perchlorate?

I am about to electrolyse a large amount of potassium chloride to get potassium chlorate, however i dont want to get any potassium perchlorate. what i plan on doing, is connecting a plastic tube to my chlorine generator, and then have the chlorine pass through my potassium chloride solution, which will stay at about 50-80 degrees celcius , and what i hope will happen is, as soon any potassium hydroxide is formed, it will react with the chlorine to turn into chlorite, which at that tempurature should then turn into 2 parts chloride and 1 part chlorate. so that way i eventually get a 99% yeild of potassium chlorate. that way i wont end up losing any chlorine from the solution. however, this means i will have to electrolyse the solution 3 times longer, so i want to know if this extended electrolysis will cause the formation of any potassium perchlorate

Question by oldmanbeefjerky    |  last reply

Car Runs on Home-Brew Hydrogen

BBC News are running an item about a car running on home-produced hydrogen.UK company ITM Power has produced a plastic film they claim is suitable for home electrolysis of water to produce hydrogen. The hydrogen (they say) can be used in the home, to be burned for cooking or heating, or to power a car (they are simply burning it, but it could supply a hydrogen fuel cell).As we have mentioned elsewhere on this site, current sources of hydrogen are not "green" (95% of current H2 supplies are manufactured from fossil fuels), but ITM say that their system is green because you aren't stopping at a filling station, you're generating your own hydrogen from the energy resource of your choice (maybe your own solar cells or wind turbine).Others, however, have questioned the wisdom of storing tanks of hydrogen at home.Whatever the application, if this new material is all that they claim, it could be a major step towards a true hydrogen society.BBC StoryITM Power

Topic by Kiteman    |  last reply

how could i use the energy of my energizer 15 minute AA/AAA for another application?

I was hoping to hook this up to my hydrogen electrolysis cell for some experimentation.

Question by GalaxyX    |  last reply

Current limiting for around 10 amps at 12 volts for electrolysis cell? Answered

I am running an electrolysis cell off a modified ATX computer power supply. If I run the cell of 12 volts it will draw around 20 amps which is more than the power supply can handle and causes it to shut down after a few seconds. If I run the cell off the 5 volt port it only runs at around 2 amps, well below what I was hoping to get the cell to run at. Does anyone have suggestions to limit the power to around 100 watts (8-10 amps at 12 volts)?

Question by danlab    |  last reply

psu ground electricity produces voltage? Answered

I sware i was preparing for electrolysis experiment with my psu and i touched metal case of psu with my hands wet, and it was zapping me with electricity but not to high..........why?                          P.S: I used grounded cable everything is okay with ground in house, Before when i used it and touched it with dry hands it didnt zap me. I used it always before. But why isnt ground 0V.

Question by h0meIandsecurity    |  last reply

DIY, AC to DC Converter, Variable 0-60vDC, variable 0-10A : is this possible and done with shoestring budget?

Hey, I've been experimenting with Electrolysis and have reached the end of what I can do with a couple of car batteries and a car battery charger. I would like to build a AC to DC converter (as I can't find anything built with the options I want). I believe the sweet spot I am headed for is 52 Volts and 1.5 -3 Amps. I would like to have variable voltage output from 0-60 Volts and variable Amperage output of 0-10 Amps. Is this something than can be put together on a hobbyist's budget? Thanks In advance!

Question by jdevereaux1    |  last reply

How do I recover the silver from unexposed B/W photo paper?

I have several hundred unexposed sheets of B/W RC photo paper. I know I need to use a fixer and a cathode/anode set-up. What is a simple, easy-to-obtain or make fixer, and what voltage/amperage combination do I need? As I remove the silver from the fixer, can I reuse the fixer pretty much indefinitely? What do I use as electrodes? All help is appreciated.

Question by jaxboy    |  last reply

Where to get stainless steel sheets for oxyHydrogen generator? Answered

I am looking for thin stainless steel sheets to use as the electrodes for an oxyHydrogen producing "dry cell" set up to power a welding / cutting torch. It should be in sheets that can be evenly devided into 6 inch squares.  I am not sure what alloy it has to be so if you know about stainless steel alloys I would love advice. The electrolyte will be NaOH, and it will probably run at 120V AC at as many amps as it will draw but I might put in one of those light dimmer knobs to control it a little.

Question by Jaycub    |  last reply

Hydrogen for renewable energy storage- total system efficiency?

This is a question that has been bugging me for some time, especially since the questions about methanol synthesis revived my interest in energy storage. Say I have a wind turbine or solar panel or whatever, that produces 1000 Wh per day.  If I use that electricity to electrolyse water, store the generated hydrogen at roughly atmospheric pressure in an upside-down water butt or a big gas-tight bag in my shed (don't worry, I'm not going to actually do this) and then feed it into a generator converted to run on H2, what percentage of that initial energy input would I get back out?  20%?  5%? 1%? The follow-up questions to this are a) How does that compare against a battery bank? What about a similar DIY-style pumped water storage system? b) What one component of the system should be improved to raise the overall system efficiency? Electrolyser, storage, generator? c) Are there any other DIY-friendly methods for storing intermittently generated electricity that I'm not thinking of? And, I suppose, d) Does doing this and providing 5-10x your overall power requirements in wind turbines work out cheaper than spending thousands on batteries?

Topic by PKM    |  last reply

does this works in practical?

Car running without fuel first i will take some water in petrol tank of a i will connect it to a electrolysis box. the electrolysis gets electricity from battery. now 2H2O[water] on electrolysis divides into 2H2 + O2 this in the engine with the help of glow plug combines and gives 2100C -2800C temperature  and water [in gaseous state] with that temp[ car works as in normal case].The water in the exhaust cools down and again goes back to the water tank. By this the cycle continues and car keeps on working. it will be like this, Battery                       Electrolysis box  [water to it comes from water tank ]              2H2,O2                 2H2+02 [in engine]                                                                                                                       2H2O + 2100-2800 Celsius temperature [engine works] water tank please tell me does it really works out or not

Question by lohithg    |  last reply

Hydrogen Fuel Cell Porous anode and cathode?

I found this image that details a hydrogen fuel cell (reverse electrolysis). Does anyone know what materials are good for the porous anode and cathode? Is carbon porous on a molecular scale? I want to make a simple reverse electrolysis in order to use hydrogen power. I would appreciate any help. I got the image from here:

Question by mykiscool    |  last reply