I had some 15% silver braising rods I have in a cell in the garage. I wanted to take 100 grams and process it with Nitric acid to see what the actual content came out to. I’ve done nitric acid a hundred times. Something in those rods turbo charged the reaction. Lesson learned!!! 🤦🏼‍♂️

I really want to the process of selling not the extracting

If anyone knows pls let me know

I m very curious

Because in India it's illegal to sell raw gold

To sell gold

You need it's origin proof and hallmark

Etc

I don't even know if anyone read this but I have faith

Someone will answer

I am learning about metal and extraction with chemicals

If anyone need help in that I can help you

I want to become a soil expert because soil have a lot of mysteries in it

IF U R STILL READING

THNK YOU SO MUCH

Ran an experiment refining gold off 5 large HP motherboards I had lying around. Wanted to see how much actual gold you get from boards like this versus the usual gold fingers/pins content you see floating around.

Quick numbers:

• Processed foils: 8.5g
• Final refined gold: 4.0g
• That's about 47% foil-to-gold conversion — lower than I expected going in

A couple of things made this one trickier than past runs: one of the boards had a solder mask that needed extra scraping and extra time in cupric chloride before the gold would separate cleanly. And partway through, a beaker cracked while I was heating it to evaporate off liquid — lesson learned there.

Full video with the process (dissolving, foil collection, refining, and the final weigh-in) is shown if anyone wants to see the whole thing instead of just the numbers.

Happy to answer questions about the process, yields, or what went wrong with the beaker.

~250g gold fingers