Guess you were sleeping in chem class...
Posted by G.U. on April 27, 2004 at 19:17:28:
In Reply to: Chem 100 posted by CE on April 27, 2004 at 09:16:07:
Taken from a web site (one of many):
"Concentrated muriatic acid is
one of the strongest acids known.
It readily attacks all of the com-
mon metals to yield hydrogen as
a by-product. Extreme caution
should be taken as certain con-
centrations of hydrogen in air
may be highly explosive.
Solutions of muriatic acid are
capable of causing severe flesh
burns and its vapors are irritating
to the skin, eyes and mucous
membranes. See the appropriate
MSDS or the safety sections of
this publication."
Muriatic acid is typically in the 32% concentration range; as concentrated as you can get it.