Palladium
Written by admin on November 8th, 2008 in Uncategorized.
Palladium
Palladium is a chemical component symbol Pd and atomic number 46. It is a rare silvery white transition metal of the platinum group, chemically resembling platinum. It was found in the platinum mine in 1803, under the name of the asteroid Pallas by William Hyde Wollaston.
Palladium is normally discovered as a rust free metal, combined with others in the platinum group. It is extracted for businesses from copper nickel mine. Palladium has a high likeness for hydrogen, are able to attract 900 times its volume of gas. Palladium and its metal compound are frequently used in medium as in medium transformer on cars, palladium on carbon applied in organic chemistry, and other combination reactions. As a precious metal, it is occasionally used in jewelry, and has the ISO code of currency XPD. Palladium as a latest investment has fascinated investment interests. At the beginning of 2007, supported by ETFs physical palladium were introduce, embracing security and the London Palladium ETF ZKB palladium ETF.
William Hyde Wollaston found palladium in 1803. Wollaston Pallas of the asteroid, which was founded two years previously, named this item in 1804. Wollaston discovered palladium in crude platinum ore, from South America by disperse the ore in water regia, neutralize the sodium hydroxide solution, platinum and sudden ammonium chloroplatinate with ammonium chloride. He mixed mercuric cyanide to get complex palladium cyanide, which has been heated to extract the metal palladium.
Palladium chloride has been approved at the same time as a treatment of tuberculosis at a rate of 0.065g per day. This treatment did not have many harmful side effects, but effective drugs later substituted it. Palladium affinity for hydrogen leads to play a vital role in the Fleischmann Pons experiment in 1989, also called as cold fusion.
During the period until 2000, Russia’s supply of palladium global market has been frequently postponed and halted because the export quota was not decided in time, due to political cause. Markets panic buying pushed the price of palladium to a record level of all time nearly $ 1,100, accessed in January 2001. During the period, Ford Motor Company, in fear of disrupting the production of motor vehicles due to a probable shortage of palladium stockpiled large quantities of metal, bought near the high price. As prices afterward fell in early 2001, Ford lost nearly $ 1 billion US dollars.
Global demand for palladium has expanded from 100 tons in 1990 to 300 tons in 2000. World production from mine was 222 tones in 2006, according to USGSdata. Most palladium is utilized for catalytic changed in the auto industry. Palladium is a soft silver white metal that looks like platinum. It is the slightest dense and has the lowest melting point of platinum group metals. It is spongy and yielding when annealed and increases its power and toughness when it is cold-worked. Palladium is chemically strikes by nitric, sulfuric and hydrochloric acid which melts gradually.
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