Goldfixing Fonderia e laboratorio analisi preziosi

Gold extraction: cyanide hazard

In nature gold exists in the form of metal and in order to extract it, it is necessary to concentrate it: to make it possible we resort to a chemical element that acts as collector and allows us to extract the gold: we have been using cyanide for hundreds of years. Cyanide is a salt that in presence of oxygen catalyzes the oxidation of gold and forms a soluble salt: at this point gold dissolved in water can be filtered, separated from the other substances and obtained in its pure form. But how much does this process cost?

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