الخميس، 4 نوفمبر، 2010

Uses of gold




The unique characteristics of gold of the Ionth and its ability to drag and composition, and resistance to corrosion made it suitable for many purposes it is mixed with other metals such as copper or silver or nickel for the alloys more durable, and with the platinum-grade IAF industry because they are highly resistant to separation of chemicals, The gold is the metal of choice in many areas such as:

Uses of goldThe unique characteristics of gold of the Ionth and its ability to drag and composition, and resistance to corrosion made it suitable for many purposes it is mixed with other metals such as copper or silver or nickel for the alloys more durable, and with the platinum-grade IAF industry because they are highly resistant to separation of chemicals, The gold is the metal of choice in many areas such as
in Jewelry Adornments:




Much use of gold in jewelry adornment known as the gold-yellow, and this is done by mixing gold with copper, silver and zinc in varying proportions produce shots gold multiple, and are measuring the degree of purity of the gold parts (part of the millennium) or Diameter by scaling the U.S., for example, the degree of purity, 1000 correspond caliber 24, and 875 correspond to the degree of purity caliber 21, while 750 corresponds to caliber 18, and generally the color tends to decrease the pale whenever any number caliber decreased the amount of gold in the alloy. The white gold is gold mixed with tin or palladium in order to make it white and used white gold usually Jewelry Sets


In medicine:
Used in dentistry because of the Ionth and resistance to corrosion in the mouth.Also uses the solution of gold in the treatment of rheumatism and bone infections.Used radioactive gold (198) in the treatment of some types of cancer.


Out of goldScholars tried to Muslims in the Middle Ages and others to convert other items into gold without success. Gold, who on earth has Otaha When you configure the Earth through the cosmic dust, which are for the explosion of Supernova. Gathered the ashes emerging with the other components of the Earth and the Earth formed, but formed the solar system as a whole. While creating the stars medium such as sun light elements such as helium, oxygen, carbon, nitrogen and others to iron (atomic weight 56), the element of heavy such as gold, atomic weight 197 - The [[dense | density 3, 19 g / cc - can not consist only in the heat severe as those that result from the explosion of a star. Then Tstadm atoms and particles to each other and attach to part of the Bbeda thus consist of heavy metals such as gold. And all the heavy elements heavier than iron are created only Supernova explosion.




Scientists have been able to in the modern era to convert other items into gold by neutron or bumped Bonoip or other atoms in nuclear reactors, but way too expensive