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Subject: Re: [Homebrew_PCBs] Re: Old GL FeCl -very slow etching copper

From: Stefan Trethan <stefan_trethan@...>
Date: 2010-05-17

Note that the boiling point of HCl is very low, so if you use that to
regenerate your CuCl don't go crazy on the heating or it will really
fume.

ST

On Mon, May 17, 2010 at 7:17 PM, James <jamesrsweet@...> wrote:

>
> I found cupric chloride to be very slow at room temp, it benefits from heating even more than FeCl. HCl + peroxide certainly works fine at room temp though, until enough of it converts.
>
>