Homebrew PCBs

Thanks for the postings as I try to keep up with the list.
I tried Leon's suggestion recently and sure enough, adding a little
Hydrochloric acid to some used Ferric Chloride solution cleared
up the sludge that was on the bottom of the container
after sitting a while. The solution is still dark, but nothing wrong
with that.
Thanks again - 73 Todd WD4NGG
 
In a message dated 2/12/2013 9:36:48 A.M. Eastern Standard Time,  
rgsparber@... writes:
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