Homebrew PCBs

----- Original Message ----- 
From: "YD" <yd_br@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Thursday, July 03, 2008 12:17 PM
Subject: [SPAM] Re: [Homebrew_PCBs] Ferric Chloride - Alternatives


> If you "revigorate" it with a slug of HCl after etching a board or two, 
> over time the Fe will oxidise and settle as insoluble FeO. Then just 
> decant it. That's how I quite unintentionally converted from FeCl to CuCl. 
> Didn't dawn on me until I started looking at the chemistries involved.

Are you sure? I use HCl to remove the sludge that tends to accumulate when 
using FeCl3, it doesn't precipitate FeO.

Leon
--
Leon Heller
Amateur radio call-sign  G1HSM
Yaesu FT-817ND transceiver
Suzuki SV1000S motorcycle
leon355@...
http://www.geocities.com/leon_heller