Palladium

Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them.

Over half of the supply of palladium and its congener platinum goes into catalytic converters, which convert up to 90% of harmful gases from auto exhaust (hydrocarbons, carbon monoxide, and nitrogen dioxide) into less-harmful substances (nitrogen, carbon dioxide and water vapor). Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, and groundwater treatment. Palladium plays a key role in the technology used for fuel cells, which combine hydrogen and oxygen to produce electricity, heat, and water.

Ore deposits of palladium and other PGMs are rare, and the most extensive deposits have been found in the norite belt of the Bushveld Igneous Complex covering the Transvaal Basin in South Africa, the Stillwater Complex in Montana, United States, the Thunder Bay District of Ontario, Canada, and the Norilsk Complex in Russia. Recycling is also a source of palladium, mostly from scrapped catalytic converters. The numerous applications and limited supply sources of palladium result in the metal attracting considerable investment interest.

Read more about Palladium:  Characteristics, History, Occurrence, Applications, Precautions

Other articles related to "palladium":

Palladium - Precautions
... Finely divided palladium metal can be pyrophoric ... Although contact dermatitis has been reported, the amount of data on the effects of exposure to palladium is limited ... It has been shown that people with an allergic reaction to palladium also react to nickel, making it possible to avoid the use of dental alloys containing palladium on those so ...
Stillwater Mining Company
... Stillwater Mining Company (NYSE SWC, TSX SWC.U) is a palladium and platinum mining company with headquarters located at Billings, Montana, United States ... It is the only palladium and platinum producer in the USA ... The only other North America based palladium/platinum producer is North American Palladium, located in Canada ...
The Palladium (Dubai)
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Live At The Palladium (The Carpenters Album)
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Sytten - Reaction
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