Homebrew PCBs

Hydrochloric acid was first discovered around the year 800 AD by the 
alchemist <http://en.wikipedia.org/wiki/Alchemy_%28islam%29> Jabir ibn 
Hayyan (Geber) <http://en.wikipedia.org/wiki/Geber>, by mixing common 
salt <http://en.wikipedia.org/wiki/Sodium_chloride> with vitriol 
<http://en.wikipedia.org/wiki/Vitriol> (sulfuric acid 
<http://en.wikipedia.org/wiki/Sulfuric_acid>).

In the Middle Ages, hydrochloric acid was known to European alchemists 
as spirit of salt or acidum salis. Gaseous HCl was called marine acid 
air. The old (pre-systematic) name muriatic acid has the same origin 
(muriatic means "pertaining to brine or salt"), and this name is still 
sometimes used.


Roland F.  Harriston
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Lez wrote:
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> What is a muriatic ?
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