#preciousmetals

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...

Hi everyone, i was making some test and i want to show you my results and the reactions that I think take place. It took me a lot of time and effort to reach these conclusions and yet there are many that I have doubts about. I hope they can be of some use to you and I encourage you to correct...