Melting pure antimony

The antimony chunks will float on top of the molten lead, so use an inverted wire basket to hold the antimony chunks below the surface of the melt until they dissolve. This will take some time and you must be patient. Also use a layer of crushed clay cat litter or “Fuller's earth” on top of the melt as boundary layer oxidation control to reduce drossing.

I was able to do so with my RCBS pot, initially blending 5 pounds of antimony nuggets into the rest of the pot of wheelweights, drawing off one full ingot mold level across the top, so the individual ingots were connected, about 5 pounds total. After each pour then topping off the melt with 4 pounds of wheelweights, and putting another weighed pound of antimony nuggets under the wire basket clamped to the drop spout handle. Each melt and pour cycle took about an hour at 700 degs. F to enable enough time for the antimony to dissolve. I used Irish penny whistle, hornpipe and fiddle music to speed up the melt time. If you use Mozart or Vivaldi add 10 minutes per cycle. The antimony-rich ingots readily snap apart when struck with a hammer.  I would then use 1 ingot of the antimony-enriched metal and 1 pound of 50-50 solder to a 20-lb. pot topped off and fluxed with wheelweights or ran ge backstop scrap, and the resulting mix performed very much like commercial 92-6-2 “hardball” alloy.