Chemical Composition of gold

Chemical Composition of gold

Chemically composed of metal from a gold and often contains varying amounts of silver (up to 40%), and also contains iron, lead and bismuth.

 Gold is known that contains high amounts of silver (from 20 to 40%) as Alalictrom. Melts easily in the metal melting point (1064.43 m) and boils at boiling point between 2600 C and 2807 C

Gold metal is chemically active and therefore it is not oxidized and structural work is not affected by most acids do not dissolve in various acids, but dissolves in aqua regia (a mixture of nitric acid and hydrochloric acid Aqua rgia)
Gold an excellent conductor of heat and electricity do not do in property delivery of electricity and heat, but silver and copper, but he resists weather factors unlike these , so it is an ideal component in electronics.
Gold is a heavy metal, and almost twice heavier than iron, so that one cubic meter of pure gold weighs more than 20 tons.

Gold exchange (pure) metal mushy and easy ways where it can be his ways and unrolled in the form of plate thickness is part of Micron and the Micron is part of a millionth of a meter this plate thin to the point enables light penetration is one of the minerals soft retractable so that enabled the conversion one gram of gold to three-kilometer-long wire without being cut off these physical qualities made him a favorite metal for jewelers and metal experts, these properties also nominated for important applications in the fields of aeronautical and space industries, electronics, and even pharmacy and medicine. However, the gold not be used practically in its pure state, but mixed with other metals to varying degrees, especially copper because it is touted to be used purely.