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<p>[QUOTE="harris498, post: 2024633, member: 44268"]Immerse .925 Ag Sterling jewelry in 35% nitric acid. Avoid fumes.</p><p>Leave flask for ~24 hours. The jewelry should be for the most part completely dissolved, unless you cooked some gold filled on sterling or vermeil pieces.</p><p>The silver is now in solution as silver nitrate. Insert a large copper rod into the solution, this will allow the AgNO3 to precipitate.</p><p>Filter the resulting Ag powder, repeat, repeat, repeat.</p><p>Melt into crucible.</p><p>This is, of course, if you want 98.5%+ purity. You can just melt the sterling into a bar, too, if you want. Just make sure you don't have any junk in there.[/QUOTE]</p><p><br /></p>
[QUOTE="harris498, post: 2024633, member: 44268"]Immerse .925 Ag Sterling jewelry in 35% nitric acid. Avoid fumes. Leave flask for ~24 hours. The jewelry should be for the most part completely dissolved, unless you cooked some gold filled on sterling or vermeil pieces. The silver is now in solution as silver nitrate. Insert a large copper rod into the solution, this will allow the AgNO3 to precipitate. Filter the resulting Ag powder, repeat, repeat, repeat. Melt into crucible. This is, of course, if you want 98.5%+ purity. You can just melt the sterling into a bar, too, if you want. Just make sure you don't have any junk in there.[/QUOTE]
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