Gold Reduction

Chemical Formula: Au, AuCl4, Au (CN)4
Present as: anion

Gold is a chemical element with the symbol Au and the atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable and ductile metal. It is one of the least reactive chemical elements, and is solid under standard conditions. The metal therefore occurs often in free elemental (native) form, as nuggets or grains, in rocks, in veins and in alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum) and also naturally alloyed with copper and palladium. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides).
Gold’s atomic number of 79 makes it one of the higher atomic number elements that occur naturally in the universe. It is thought to have been produced in supernova nucleosynthesis and from the collision of neutron stars and to have been present in the dust from which the Solar System formed.
Gold is corrosion resistant and considered a precious meta. It is used primarily in jewelry and as an investment object.

Gold chloride is sometimes used in “electroless” plating applications.

Alkaline cyanide plating is the most common gold plating method.

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