In this instructable I will be explaining how to separate water into hydrogen and oxygen through the method of electrolysis. Electrolysis is where you run a current through a solution containing ions which in this case are hydrogen and oxygen. 2H2O - 2H2 + O2

the setup cost me about $45 New Zealand to make but i had some things already lying about

This project is potentially dangerous, hydrogen in the presents of oxygen will react violently I take no responsibility for any harm you cause yourself or others

also this is my first proper instructable any comments on how I could improve would be appreciated.

Step 1: Gather the materials

1. two 3/4 inch diameter galvanized steel pipes.
2. two 3/4 inch diameter galvanized steel end caps.
3. two 1/4 inch stainless steel bolts with nuts (nylocks work well as then you only need two)
4. four 1/4 inch stainless steel washers
5. four 1/4 inch o-ring
6. four seals from plastic bottle lids.
7. 1 valve (two optional if you want to collect both gases
8. Teflon tape
9. water
In the intro you asked for suggestions.&nbsp;&nbsp; So um, here goes...<br> <br> I think you could do this <em>same trick using just one pipe</em>, and it would only take half the quantity of materials. &nbsp;<br> <br> That is to say, inside both pipes, the inside wall of the pipe is acting as one of the electrodes.&nbsp; Also inside both pipes you are getting both an anode and a cathode reaction.&nbsp; So I'm <em>guessing</em> that each pipe produces a mixture of hydrogen and oxygen, rather than hydrogen in one pipe and oxygen in the other.<br> <br> If you do decide to go with a one-pipe design, may I humbly suggest using the pipe as the cathode (-). The reason for this is that loss of metal, e.g. metal iron going to iron ions, Fe(s) = Fe<sup>+2</sup> + 2e<sup>-</sup><br> If such a reaction is occuring it will take place at the anode(+), and it is better to have anode crumble into rust than the pipe itself, because the pipe is needed structurally to hold in the water and gasses in the cell.&nbsp; That's why I suggest making the pipe be the cathode.<br> <br>
First off thank you for your feed back.<br>I can understand where you are coming from, on trying to do this in plastic bottles with a metal rod connecting both of them i did end up getting hydrogen and oxygen in both of them but with this I have collected the gasses from each pipe in balloons, with the balloon containing oxygen when it was lit it did not explode so I assume that there was no hydrogen produced in that particular pipe while with the other balloon I let the gas escape slowly in front of an open flame in the form of a match and instead of rushing into the balloon and exploding like when both gases were in a single balloon it produced a 2-3 cm flame out in front of the balloon. I don't exactly no why this happened but this is just what i have found.
Hey, thanks for the reply. I don't what's going on with your thing either, but I'll trust you to figure it out, since it's your thing.<br> <br> BTW, if you are looking for new things to do with hydrogen, I saw this the other day:<br> <a href="http://www.dealextreme.com/p/cool-rechargeable-2-ch-remote-control-flying-clown-fish-air-swimmer-orange-103928">http://www.dealextreme.com/p/cool-rechargeable-2-ch-remote-control-flying-clown-fish-air-swimmer-orange-103928</a><br> <br> Naturally they ship it without the lifting gas, but if you can make your own hydrogen on-demand...<br> <br> Not sure what reason for you built your electrolyzer in the first place.&nbsp; Was it for science, or for pyromania? Or both?&nbsp; I&nbsp; mean those are both good reasons.<br> ;-)<br> <br>
That's a very cool hack!

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