Re: HCI h2o2 issue
Posted by
ninemag on
Sep 13, 2020; 10:50pm
URL: http://guitar-fx-layouts.238.s1.nabble.com/HCI-h2o2-issue-tp49160p49165.html
The h2o2 stability clears it up- was an old bottle... same one I e been using, but old.
Cracked open a fresh bottle and had no issues.
I’ll grab some cooper wire though, good to know
Thank you!!!
On Sun, Sep 13, 2020 at 3:20 PM Silver Blues [via Guitar FX Layouts] <
[hidden email]> wrote:
Right okay, yes the green colouration is normal and in fact beneficial to the etch - the acid alone cannot etch copper (which is why you add the peroxide in the first place). You can "strengthen" the etchant by just dissolving a bit of copper wire in the fresh solution.
Household peroxide is only ~3% hydrogen peroxide, which is not very much. It's stored in dark bottles because it is light sensitive, and regardless isn't extremely stable so will decompose over time. If the peroxide you used was old, it might explain inefficient etches as well.
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