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Re: [Homebrew_PCBs] Etching with vinegar, peroxide and salt

2016-06-19 by <n0tt1@...>


I'd like to do that as well with the Muratic...question is what
does one DO with the spent etch?  Might not be so good
in a septic tank IF that is permitted to pour the stuff down
the drain.  Just asking...
 
Charlie
 
On 19 Jun 2016 09:01:49 -0700 "duwaynes@... [Homebrew_PCBs]" <Homebrew_PCBs@yahoogroups.com> writes:
 
One explanation I was given is that the vinegar reacts with the chloride in salt and produces a very weak hydrochloric acid.  I tried it but it took forever to see any effect on the copper.  Much easier to go and get a gallon of muriatic acid for $10. I only use about an ounce at a time  along with 3 oz of peroxide and get boards etched in about 5 minutes.
 

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