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Thread: Crawler & His ERN.
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01-26-2016, 11:26 PM #28
yes, thank you. A humorous note about acid: i made some home made circuit board etching acid (sounds like about the same recipe)and stored it in a glass jar with a metal lid. months later i opened the cupboard and noticed that all the metal tools and copper wire i had stored in there were rusty and green. who would have thought acid would eat through a lid without being in direct contact with it ?