Is it safe and reliable to use them?
What voltages and electrical currents would be the best?
Do they have limitations for what they can be used for?
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One Comment
No, not directly. The A in AC stands for alternating. The polarity of the current is alternating back and for 60 times a second which means that the anode and cathode are reversed 60 times a second which means that you will end up with the products of the reduction and oxidation reactions at both electrodes.
AC current must be rectified first, that is, converted into direct current, before it can be used for electrolysis. Relatively low DC voltages and high currents are required for electrolysis.
=============== additional comments =============
Then it is a power supply, not a transformer. A transformer is a specific component of a power supply that either increases or decreases the voltage and ONLY works with alternating current. Devices called diodes follow the transformer and convert the alternating current into direct current.
So now we’re back to what I was saying. You can accomplish electrolysis with less than 5 V DC but the current will usually be fairly large for two reasons. The greater the current the more electrons will flow and the greater amount of product will form. Secondly the material to be electrolyzed will almost be a dead short and according to Ohm’s law, a low resistance will result in a large current.
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