الخميس، 4 نوفمبر، 2010

Platinum

Chemical element, or what is known among some people as "white gold" is a precious metal for the color gray - white, The origin of the word platinum to the Spanish word, namely, (Plata) and means (silver small), and platinum is stronger than iron and has a flexible gold. Has the symbol Pt in the periodic table and atomic number 78 and atomic weight of 195.09 and last orbit 5d9 1768.3C and the degree of melting and boiling point 3825C ..

Platinum metal strong stainless steel does not lose its luster when exposed to air, because platinum does not react with oxygen or sulfur compounds in the air, as it is not affected by acids that melt most other metals. The best way to melt platinum is to use a mixture of nitric acid and hydrochloric acid, and easily combine with phosphorus, arsenic, silicon, and also a platinum alloy with most metals.
Platinum metal is also more expensive than gold, it could be worth up to about twice the value of gold

Platinum is used in chemical laboratories to melt the samples of various acids, because it resists heat and corrosion, and also uses platinum in the work of panels and thin wires that are used in a variety of purposes


 
"Catalytic converter" is located in the exhaust from automobiles, which is called in some countries (dbp pollution) where there is platinum in the form of a network to interact with the first poison gas carbon dioxide and convert it into water vapor and carbon dioxide and nitrogen.
Also works platinum to dismantle parts of the oil, and enters in the jewelry industry in a wide range because of its strength and hardness, in addition to the non-affected material de-gloss, and uses platinum in the manufacture of the best surgical instruments , tools, laboratory and dental, are also used certain chemical compounds the container of the platinum in the treatment of certain forms of cancer such as platinum compound Cisse (cis platinum