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Subject: Re: [Homebrew_PCBs] Re: Muriatic acid and H2O2

From: Russell Shaw <rjshaw@...>
Date: 2006-06-27

Myc Holmes wrote:
> Note: Muriatic Acid is a very strong acid and will cause severe burns! Acid
> burns destroy the tissue are very painful. Definitely use the gloves and eye
> shield. Keep Baking Soda handy to neutralize any spills. If you get it on
> yourself, flood, and I mean FLOOD, the area with water or apply a paste of
> Baking Soda (Sodium Bicarbonate), then FLOOD with water.
>
> Muriatic Acid will eat holes in metal, clothing and you. The mist and spray
> created during bubble etching is very dangerous. Use extreme caution.
>
> I like the way the Muriatic Acid / H2O2 etches, but it must be used with
> respect. The bad habits and sloppiness picked up while using FeCl4 must be
> unlearned.
>
> Myc
>
> (former Industrial Chemist)

HCl is tame stuff if not concentrated enough to be fuming.

http://en.wikipedia.org/wiki/Hydrochloric_acid

It stings on wounds like lemon juice or vinegar.