On Mon, 26 Nov 2007, Russell Shaw wrote:
> Your gut contains a large amount of HCl.
Specifically, your stomach, but you still don't want to get HCl on you.
Your stomach goes to enormous lengths to prevent the HCl from damaging
other tissue. HCl is not quite so good on the skin, and is really bad on
the lungs or mucous membranes.
My point is all these etching chemicals are pretty nasty, and you don't
really want any on you.