Will KOH corrode my copper tubing?

[JeremiahBT]

I'm using copper tubing in my gen, and I'm wondering if anyone knows whether potassium hydroxide will corrode it.

Thanks.

[jericoriver]

Yes it will.

[livehho]

it will form a dark layer in the surface.. that's all

no corrosion

[Q-Hack!]

it will form a dark layer in the surface.. that's all

no corrosion

What do you think that dark layer is? Yes, it is corrosion.

[rcflyn]

UUUHHHMMMMMM, I had a small amount of KOH Completely EAT Through Coper Wire. I originally had my Cell dangeling from 10G coper wire inside the E-Lite solution. That lasted for about 5 days.....
Got rid of the Coper wire and replaced it with Stainless strips, and No problem...

it will form a dark layer in the surface.. that's all

no corrosion

[Humanoid_1]

In that case of the wire, it was very likely forming part of the "circuit" and hence electrolyses ate through it fast.

For example if copper wires are supplying current to the stainless plates in a wet cell they must be plastic dipped or protected from the electrolyte else they will melt away in no time at all.

People do this sometimes to make their cells more efficient, as long Stainless "runs" down to the cell are inefficient as stainless does not conduct electricity well and acts as a partial resistor.

In the case of the piping it would last longer as it does not form part of the circuit - unless earthed maybe + leads from the cell, so close to live current...

Still wouldn't like to try it though LOL

[Marlon]

You MUST use stainless steel for every part that comes in contact with any electrolyte solution or you WILL get corrosion.

The only copper I use is insulated wire for my electrodes.
Everything else is 316ss

[sokeway]

Corrosion, coupled with electrolysis, and soon gone

[lhazleton]

UUUHHHMMMMMM, I had a small amount of KOH Completely EAT Through Coper Wire. I originally had my Cell dangeling from 10G coper wire inside the E-Lite solution. That lasted for about 5 days.....
Got rid of the Coper wire and replaced it with Stainless strips, and No problem...

Damn Brian.........You have time to post this, but ya still haven't done the video yet! Get away from your PC, make the vid. and post it over at the Underground. Fu**in' Melvin............

[rcflyn]

Damn Brian.........You have time to post this, but ya still haven't done the video yet! Get away from your PC, make the vid. and post it over at the Underground. Fu**in' Melvin............

DUDE, I posted that AGES ago...
OOOOHHHHH CHIT.... I'm at the computer to see this....
Never mind....
I'm a Melvin.....