Purification are newly separated gold from dust, silt and other impurities by strong currents of water to remove sand and alluvial, and keep gold in a place due to the high density of gold has been used mercury to dissolve gold without the sand and silt.Then finds the gold from the mercury by distilling the latter. It also draws a presentation at the gold mining copper and silver. There are chemical methods to extract gold, which is pulled by way of cyanide, or silver alloys dissolve in concentrated sulfuric acid, and purification are gold with nitric acid first, then electrolysis.
Purification of gold newly
