Yahoo Groups archive

Homebrew PCBs

Index last updated: 2026-04-28 23:05 UTC

Message

Yet another CuCl Regeneration Scheme

2009-07-14 by Ken Stuempges

If air is good, can Ozone be better?  

I cobbled up a small Corona-type Ozone Generator, and am pumping Ozone into my etching solution, rather than plain air.  It would seem to me that that could be even better than straight Oxygen.  Unfortunately (for testing purposes), my etchant really does not require regeneration at this time, so I can't compare the results.

Perhaps Mr Seychell could add some light.  I looked at his equation 4 from his excellent site  
       
[4]     2HCl {aq} + 2CuCl {aq} + O {aq} \u2192  2CuCl2 {aq}  + H2O{aq}  

and wonder what the result using Ozone would be ?

I realize Ozone is highly reactive, and might affect my cheap air pump, as well as do something to the tubing - over time - 
Also wonder if any ill effects might result from this - reacting differently to the HCl perhaps . . .

As you all can probably tell, I seem to have entirely too much time on my hands - but when your retired it is no problem.  
Just "thinking outside the box" again.

Any comments?

Ken

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.