Preprocessing Chips For Gold Extraction 

Thanks for a great idea! I will use some old A/P tonight.

Thanks for another very interesting video. I just thought of something - why don't we use alum to dissolve the iron. And if we do, would it be better before or after incineration? Alum is cheap and the process is quite fast.

thank you sir!

Здравствуйте как можно с вами связаться у меня 100 кг такого добра позолоченные платы помогите за умеренную плату разобраться не могу осадить золото плз

we always find anything you say useful. AT LEAST I DO. am finishing my chips today I hope. have a great weekend. mike