Todd,
Makes sense.
Thanks,
Rick
-----Original Message-----
From:
Homebrew_PCBs@yahoogroups.com [mailto:
Homebrew_PCBs@yahoogroups.com]
On Behalf Of Todd F. Carney
Sent: Tuesday, February 12, 2013 12:20 PM
To:
Homebrew_PCBs@yahoogroups.comSubject: Re: [Homebrew_PCBs] ferric chloride question
Rick,
The ferric chloride is dissolving copper into solution. For that reason, I
could not get lighter or stay the same. Put something that's not white into
solution and the solution gets darker.
73,
Todd
----------------------------------------------------------------------------
--------
K7TFC / Medford, Oregon, USA / CN82ni / UTC-8
----------------------------------------------------------------------------
--------
QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design
On Tue, Feb 12, 2013 at 6:36 AM, Rick Sparber <rgsparber@...> wrote:
> ∗∗
>
>
> Leon,
>
> I'll try that today.
>
> Any idea why the ferric chloride is getting darker?
>
> Rick
>
> -----Original Message-----
> From: Homebrew_PCBs@yahoogroups.com
> [mailto:Homebrew_PCBs@yahoogroups.com]
> On Behalf Of Leon Heller
> Sent: Monday, February 11, 2013 6:40 AM
> To: Homebrew_PCBs@yahoogroups.com
> Subject: Re: [Homebrew_PCBs] ferric chloride question
>
> On 11/02/2013 13:06, Rick Sparber wrote:
> > I have been using the same ferric chloride for a while and it still
> > does a fine job of etching my boards. But it has become darker and I
> > see some precipitates forming. Does it just need a little water?
>
> A little hydrochloric acid should remove the sludge.
>
> Leon
> --
> Leon Heller
> G1HSM
>
> ------------------------------------
>
> Be sure to visit the group home and check for new Links, Files, and
Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>
[Non-text portions of this message have been removed]
------------------------------------
Be sure to visit the group home and check for new Links, Files, and Photos:
http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links