File:Gold and copper nitrate solution on a filter.png

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I used the acid method to remove the gold from the ore and precipitated it with sulfide-be metabi, and I got a golden yellow powder, and after boiling and drying it, I tried to melt it but I didn't get a gold ingot! I got hot with ethylene, but it didn't work!are telluriom powdr nicesery?

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English: This picture was taken while I was recovering some gold from broken electronic divices. Lots of gold is wasted every year all over the world and the few times it is recovered it is done by people who does not work in safety conditions, so as long as you can afford a decent safety system you can have fun and see how is chemistry such a nice thing.
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Author Francesco Sciara

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current20:53, 4 December 2017Thumbnail for version as of 20:53, 4 December 20172,816 × 2,656 (9.24 MB)F.shara (talk | contribs)User created page with UploadWizard

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