From: Stefan Trethan <stefan_trethan@...>
Subject: Re: [Homebrew_PCBs] Re: Muriatic acid + drug store hydrogen peroxide
To: Homebrew_PCBs@yahoogroups.com
Date: Sunday, February 14, 2010, 1:57 PM
Would be nice if you could correct wikipedia.
ST
On Sun, Feb 14, 2010 at 4:39 PM, Yngve <yd_br@yahoo. com> wrote:
> That's rubbish. Make a search on how acetone peroxide actually is produced and the needed care and equipment. Besides, it would stay in solution and decompose at the temperatures used for etching.
>
> That people actually believe these old wives tales is the cause of the hassle at airports and restrictions on access to useful but largely innocuous materials.
>
> --- On Sun, 2/14/10, toddroberts2001@ aol.com <toddroberts2001@ aol.com> wrote:
>
> From: toddroberts2001@ aol.com <toddroberts2001@ aol.com>
> Subject: Re: [Homebrew_PCBs] Re: Muriatic acid + drug store hydrogen peroxide
> To: Homebrew_PCBs@ yahoogroups. com
> Date: Sunday, February 14, 2010, 1:12 PM
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Hi All,
>
> I don't know if this has been covered before but in using the chemicals
>
> Muriatic Acid (hydrochloric acid) and Hydrogen Peroxide to etch
>
> circuit boards with - if someone accidentally spilled some acetone
>
> into the etchant mix they could inadvertently produce a high explosive
>
> called Acetone Peroxide. Some people use Acetone to clean the copper
>
> boards with prior to etching so it is possible the chemicals could be
>
> accidentally mixed together. I believe the reaction produces white
>
> crystals that are the highly unstable explosive Acetone Peroxide.
>
>
>
> There is no such danger when using ferric chloride. Just a reminder to
>
> be careful when using these chemicals.
>
>
>
> Todd R
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------ --------- --------- ------
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups. yahoo.com/ group/Homebrew_ PCBsYahoo! Groups Links
>
>
>
>
[Non-text portions of this message have been removed]