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3 votes
1 answer
2k views

Electrolysis of water with aluminum at the negative pole

I am doing electrolysis of water to collect the hydrogen and I'm running into a problem: on the positive side I'm using graphite from a pencil (I cannot use any other material because it corrodes too ...
Samul's user avatar
  • 131
9 votes
1 answer
12k views

Identity of a green substance formed during electrolysis reaction?

I did a short experiment in which I connected a $1.5\:\mathrm{V}$ battery with 2 paper clips into a bowl of water to which I added salt. After a while, I saw a yellowish-greenish cloud inside the ...
Omer's user avatar
  • 93