Dissolved steel??? Okay...as long as you know what you're doing... :)
Meh, A little HCl here & there. Eventually I'll have to tinker around with HF (hydro-fluoric acid) too.
LOL, So far, to my record I have only stabbed myself in the hand with a broken thermometer and flooded the lab floor once. Not bad, eh??
Man, am I pathetic....