gold

Hello-I have many what I thought were called semiconductors but who knows-they look like a rupee coin, silver ring with yellow center, about 11/2”. My dad is a very retired 95 year ild electrical engineer that worked with and designed these. Several years ago he demonstrated the extraction of a...

How much gold should I expect from this 1.5 KG old CPU lot that I bought from an individual seller's website? (I asked the guy if he could do a thumbs up to prove it was him selling it)

Anybody with experience or thorough testing of various precipitating agents that could help me determine best gold precipitation methods or agents? I have heard SMB is very good, but I've also heard about various other such as FeSO4, Na2S, Ascorbic acid, Zinc, SO2 gas, Activated Carbon. These...

I've noticed that many central banks around the world have been increasing their gold reserves in recent years. I'm curious about the motivations and implications behind these actions. What do you think are the main reasons central banks are buying more gold? How does gold contribute to the...

hi guys, i was profilling the recovering palladium method and i found some problems. I have an alloy wich has gold, silver and palladium. i inquarted with copper to low the silver concentration down to 8% and laminate de ingot. Then i dissolved the alloy in AR and i filtered to separate the...