Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Oxygen tablets for CuCl regeneration
From: "Ken Stuempges" <ozarkshermit@...>
Date: 2009-07-05
Howdy
I have this "hare-brained" idea on another method to regenerate Cuperic Chloride etchant. I plan on getting some "Oxygen Tablets" (used in fish tanks, live bait tanks, etc), and placing one of the tablets in a closed container of water to generate oxygen.
The container will be connected via a tube to my bubbler, rather than my air pump. As a result, pure oxygen will be bubbled, rather than air. I'm guessing that it should be as fast a regenerator as Hydrogen Peroxide . . . and not any more expensive when compared to 30 or 40 volume Hydrogen Peroxide - plus the etchant will not be diluted.
Any comments ? Has anyone tried this? I'll post my results
Ken