Is refining gold illegal in the United States? We are in the state
of Texas.
So far as I know, refining gold is legal. No real reason why it
wouldn’t be.
Unlike jungle recovery of gold from ore, which might be done with
mercury (toxic as hell, pollutes rivers, etc) by those who don’t know
better or have better means, actual refining of gold is fairly simple
chemistry. It’s done by dissolving the impure metal in acid, usually
aqua regia (a mix of hydrochloric and nitric acids), and then
precipitating out the gold, leaving the impurities in solution. For
the person doing this, working close to these acids, the fumes can be
pretty nasty, and corrosive to other things in the room. But traces
of the fumes, enough to get a whiff of something not smelling good,
is more annoying than actually dangerous. Still, simply from a
courtesy standpoint, not to mention the persons lungs, the fumes
should be properly vented.
And while the end use of these chemicals, ie refining gold, is legal
enough, it may be that there might be local ordinances regarding the
acids. OSHA might have something to say about excessive fumes, and
the fire department might have something to say about storing these
rather strong and potentially dangerous acids.
I’d also mention that it’s possible to refine gold without acids or
nasty chemicals at all. The I. Shor company’s Simplicity refining
system does it electrolytically, using a fairly simple salt solution
instead of acids. That can generate some unpleasant smells if it’s
not being done quite right, but it’s not supposed to do that if it’s
running correctly.
I’d suggest the first step would be to talk to the individual who
you believe is doing this, and ask them about the smells, and what
they could do to solve this irrititating problem. If it’s acid fumes
you’re smelling, then although these are not dangerous to the degree
of something like cyanide fumes (I assume by the time you’re smelling
them, these are faint traces, not a strong smell), they’re still not
a good thing to have floating around, and can be irritating and
unpleasant. If you can smell these fumes, that person needs to solve
this situation. Your landlord might have something to say in the
matter too.
Peter Rowe