Hi Juan,.......i just got back from a trip to a refiner a few weeks
ago, where we melted about 200 pounds of an accumulation of
photographic recovered silver. (among other melts) The smell you
noticed was sulfur,......which burns off and at the refinery they
have a venting system that sucks off the gas as it reaches the lip
of the crucible. You're not likely to have such a system,.........so
avoid brething the fumes as much as possible.
Our batch also had some black on the edges and one side,.....the
other generally was silver in color. Nice thing about the stuff is
that it generally is of a very high finess,........ours worked out
to the high 98-99% range.
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