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Subject: Re: [Homebrew_PCBs] Old etch

From: Chris Maness <chris@...>
Date: 2010-04-02

On Fri, Apr 2, 2010 at 1:36 AM, zl1gbb <zl1gbb@...> wrote:

> Hi
> I am sure someone can help me. What should I do with chemicals used in
> making pcb's? I have a winchester of used Ferric Chloride which I would like
> to safely dispose of. Does this need any treatment and how should it be
> disposed of?
>
> Info on any other common chemicals would also be appreciated. Is there a
> common philosophy such as kill all chemicals etc?


The Cu++ ion is harmful. It should be disposed of in a local hazardous
waste facility. Also, you can evaporate it and harvest the crystals to make
it more compact and easy to store.
Chris KQ6UP


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