Quote Originally Posted by OzJohn View Post
Didn't old time chemists call a mixture of nitric and hydrofluoric acids Aqua Regis because it reputedly was the only thing that could dissolve the noble metals? Not being a chemist I'm unsure what glacial acetic acid contributes to the power of this combination but I can certainly vouch for its corrosive powers on skin. I was not aware that it is flammable - you live and learn. OzJohn
That's nitric acid and hydrochloric acid. Nice combination.

There is this one awesome example of it, being used to dissolve physcicist's gold nobel prizes, sparing it from a nazi raid during the war, the gold was precipitated out later and recast and presented to the physicists again.