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Oops, I'm seeing the battery electrodes may be manganese dioxide doped with carbon. But, they may still work for your needs.
Work it out with a pencil ? ... https://en.wikipedia.org/wiki/Graphite#Pencils(burn away the wood to leave the graphite core ?)
Quote from: RD on 14/08/2012 22:50:18Work it out with a pencil ? ... https://en.wikipedia.org/wiki/Graphite#Pencils(burn away the wood to leave the graphite core ?)Pencils leads are a graphite/clay mix. But, they still might work.
So the mechanical pencil leads would work for what I'm trying to do, right?
Dielectrics conduct electricity the fastest of all, but at reduced current. Sincerely, William McCormick
I have many glass tube and jars I could use to contain the gaseous by products, but should I want to dispose of them, what would be the safest way to do so?
I know what the electrolysis will produce, but I'm doing it outside and wearing a gas mask so I should be alright. Thank you for your concern though.
Quote from: bmore_ravens on 18/08/2012 08:27:16I know what the electrolysis will produce, but I'm doing it outside and wearing a gas mask so I should be alright. Thank you for your concern though.Do you really need salt as your catalyst in the electrolysis reaction? If not sodium bicarbonate (baking soda), I don't think, will produce any harmful gases. However, I not sure that this will produce sodium hydroxide however. If you have access to it, you put some elemental sodium in water and this will produce sodium hydroxide. Be careful, though, as this is quite an explosive reaction-even a small piece of sodium will produce an explosive reaction; small pieces of glowing material may be shot into the air.
Capture the hydrogen for "experiments", maybe in a mylar balloon.Will the oxygen and chlorine come out together?
When you get your electrode, Bmore, you may still have quite a lot of difficulty with the practical aspects of this electrolysis. It is an industrial method for producing caustic soda and chlorine gas known as the "chloralkali process". But it is not easily adapted for home, or even laboratory use,
(1) Lab Rat elemental sodium is much more dangerous and much less accessible than caustic soda, which can be readily bought at appropriate stores (hardware stores in this country; do not know what British/North American equivalents are). If the aim is simply to get hold of some caustic soda, there is no need for electrolysis or any other awkward and dangerous chemical procedure, and certainly not to use an extremely dangerous material like metallic sodium. In my student days there was a man at my university who had permanent lifetime employment as a "cleaner" because he had been blinded and had bad facial scars from an accident where water had come in contact with NaK eutectic that was being used as a coolant in some particle physics equipment.(2) Salt is not a catalyst in this electrolysis reaction, it is a reactant, along with water.As for #1, I did warn that it was a dangerous reaction that would shoot off glowing debris. The second one, however, was my mistake.