
Gold mining methods and more about gold
Gold mining methods and more about gold Two well-known gold mining methods use the toxic sodium cyanide and also toxic mercury by first dissolving the gold according to: 4 Au + 8 NaCN + O2 + 2 H2O → 4

Gold mining methods and more about gold Two well-known gold mining methods use the toxic sodium cyanide and also toxic mercury by first dissolving the gold according to: 4 Au + 8 NaCN + O2 + 2 H2O → 4