Short video showing how and what to scrap in old cell phones and prepare them for gold and other precious metals recovery.
On our planet, noble metals like gold and silver prefer to be together. For a long time it was thought that they were friends in the space as both these elements are produced by the same star. However, the work of German astrophysicist Camilla Hansen has shown that it is not the case. Silver appears […]
In this video we dissolve a gold coin in acid. Warning: This reaction produces toxic gases and handles corrosive acids. It should be performed in a fumehood with gloves. the 1/20th troy ounce (~1.5g) gold coin is reacted with 10mL of 12M Hydrochloric acid and 1-2mL of 15M Nitric acid. The result is orange chloroauric […]