"George E. Cawthon" wrote in
:


Don't kn wwhich of you said this,but;


Fuming sulfuric acid is that with extra SO3 added. It is often quoted
as sulfuric acid with concentration over 100% (like 105%), on the
theory that adding water to it would convert SO3 to H2SO4, and make
more sulfuric acid.

Never add water to acid,unless you like getting splattered with acid.
It's acid-to-water.


--
Jim Yanik
jyanik
at
kua.net