Industrial gold purification operations play a major function in the international economy, supplying purified precious metal for ornamental products, electronic components, medical devices, and financial reserves. However, the environmental consequences of these large-scale operations extend far beyond the refinery site. Precious metal processing often requires chemical treatments, h... https://michael397b6p.wikihearsay.com/4171100/understanding_the_key_techniques_of_auriferous_refining_practices_for_hobbyists_and_experts