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Engineering and Construction
Pages 7 (1757 words)
Name Instructor’s Name Course June 2, 2015 GOLD MATERIAL: EXTRACTION, STRUCTURE, PROPERTIES AND ITS IMPORTANT Abstract This paper gives a general overview of gold material, its physical and chemical structures and properties, the general process used in extraction of the mineral (gold) including the many types of gold we have.
Introduction Gold is a dense element having a shiny, soft and malleable surface. Its chemical symbol is Au which comes from a Latin word Aurum. It has an atomic number of 79. Gold is among the non-reactive metal, thus, it many functional uses in manufacturing industries and natural environments. It has rust resistance i.e. does not react with oxygen. It is a good conductor of electricity being able to convey a very tiny electrical current in temperature ranging from -550 to +2000. 1 This metal is among the most ductile metals, thus, it allows to be molded into very small threads or wires without breaking. Furthermore, gold is malleable. This makes it possible to be shaped into extraordinary thin sheets. It is known to be the least absorptive material, but most reflective of infrared energy. Gold with a high purity has the capability of reflecting 99 percent of infrared rays. Also, gold is among the best heat conductors or thermal energy. This makes it to be used to transfer heat away from very delicate instruments, like electronics. Gold alloys, being the most tenacious and long performing material that is used to guard electronics against high temperatures produced by them. ...
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