It looks like a secondary reaction -- involving the salt and the water -- and possibly a second secondary reaction involving the copper, explains a lot of what we saw in our version of splitting water molecules.
A concise explanation can be found on a discussion board at a British site called The Naked Scientists. Explains everything except the black flakes. Have to keep working on that bit.
1 comment:
use graphite instead of copper and the black flakes will be gone
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