I dont know if this is the right place to ask this question but if maybe someone can put me in the right direction of where to ask, or elsewhere would be fine.
I'm working on an electrolyser project and was on the process to prime the electrodes with hydrochloric acid. My container is made of polypropylene (PP) and black polyethylene (PE). I filled up the electrolyzer with the acid and turned it on.
The acid went black in a few seconds and when i purged the unit, i could see some little lumps of black stuff, that i suspect to be the PE that has been dissolved in the process.
My problem is that i chosen PE because it was satisfactory on a chemical resistance chart... So I may have missed something... I dont understand what happened... Maybe something to do with the current? 60A DC under 12v was involved.
Any idea is welcome.
Thanks in advance.