ABSTRACT
Gold possesses a unique spectrum of properties. In its pure form, gold has a rich yellow color, is very soft, highly malleable, and ductile at room temperature. It possesses high electrical and thermal conductivities. From the chemical and electrochemical point of view it is the most noble of all metals. It does not corrode, tarnish, or oxidize. It has an unequaled stability toward inuences from all atmospheric conditions, be it in a natural, biomedical, technical, or any other environment such as leisure or household. Its stability also persists to higher temperatures, so that it can be molten in air without oxidation despite its high melting temperature of 1064°C. The unique combination of some of these properties is responsible for its use, not only for luxury goods like jewelry, but also in many different technical applications despite its high metal price. In almost all areas of application, however, gold
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