Palladium [Pd] (CAS-ID: 7440-05-3) locate me
An: 46 N: 60 Am: 106.42 (1)
Group No: 10  Group Name: Precious metal or Platinum group metal
Block: d-block  Period: 5
State: solid at 298 K
Colour: silvery white metallic Classification: Metallic
Boiling Point: 3236K (2963'C)
Melting Point: 1828.05K (1554.9'C)
Density: 12.023g/cm3
Shell Structure diagram | Atomic Radius diagram
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Discovery Information
Who: William Wollaston
When: 1803
Where: England
Name Origin
Greek: Pallas goddess of wisdom and after the asteroid discovered in 1803.
Sources
Obtained with platinum, nickel, copper and mercury ores. Occurs primarily in Siberia, the Ural Mountains, Ontario Canada and South Africa.
Uses
The largest use of palladium today is in catalytic converters. It is also used in alloys for telecommunication equipment switching systems and electrical relays, catalyst for reforming cracked petroleum fractions, metallizing ceramics, mixed with gold to make "white gold" for jewellery, aircraft sparkplugs, dentistry, surgical instruments.
Palladium dichloride (PdCl2) can absorb large amounts of carbon monoxide gas and is used in carbon monoxide detectors.
Notes
This metal has the uncommon ability to absorb up to 900 times its own volume of hydrogen at room temperatures.
In 2000, The Ford Motor Company created a price bubble in palladium by stockpiling large amounts of the metal, fearing interrupted supplies from Russia. As prices fell in early 2001, Ford lost nearly US$1 billion.
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