At 05:22 AM 5/17/2010, Janne Ruohom�ki wrote:
>NaOH, KOH, H2SO4 and HCl are way too strong bases/acids for any metal
>surface in my opinion. Theres a difference in rates acids work with

Janne, where's your adventurous spirit?  You 
sound like the kind of guy who would tell people 
not to grind their Potassium Chlorate / Aluminum 
powder mixture in a mortar.*  <g,d&r>  (If that 
doesn't translate, it's grinning, ducking and running.)

*He *said* he'd only been stirring it very 
gently, as we'd been well warned about the habits 
of KClO4.  But he must have scratched the bottom 
or something -- he came belting down the cellar 
steps yelling "I'm blind!  I'm blind!" as he 
leapt over the 20" box fan at the bottom of the 
steps.  Well, he wasn't blind as it turned out, 
but his mother, a fine woman IIRC, was foolish 
enough to believe that the burned spots all over 
his face were a sudden outbreak of acne.  Or 
perhaps she didn't -- mothers are mysterious sometimes.

;-)
David