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.comSubject: 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