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Subject: Re: [Homebrew_PCBs] Re: Muriatic acid + drug store hydrogen peroxide

From: Yngve <yd_br@...>
Date: 2010-02-14

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@... <toddroberts2001@...> wrote:

From: toddroberts2001@... <toddroberts2001@...>
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



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