Hi everyone;
First I put 500grams of old mobile boards in AP and I added some fine iron to create ferric chloride to help in etching the copper and separate the gold foils form the boards ...
The first question , did any gold dessolve in the AP and ferric chloride solution? And if so how can I recover it back ?
After I separated the gold foils from the boards I dessolved it in AR ... The problem is I had a greenish dark brown dirty solution I added SMB to the solution there were no fizzing after one hour I had a white precipitant with slight brown one and the solution became darker ... So I ended up with a diluted AR with white precipitant ......I need a help, please!
First I put 500grams of old mobile boards in AP and I added some fine iron to create ferric chloride to help in etching the copper and separate the gold foils form the boards ...
The first question , did any gold dessolve in the AP and ferric chloride solution? And if so how can I recover it back ?
After I separated the gold foils from the boards I dessolved it in AR ... The problem is I had a greenish dark brown dirty solution I added SMB to the solution there were no fizzing after one hour I had a white precipitant with slight brown one and the solution became darker ... So I ended up with a diluted AR with white precipitant ......I need a help, please!