Homebrew PCBs

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.