46 106.420
Pd
Palladium

Palladium , Pd

Palladium is a rare and lustrous silvery-white metal that was discovered in 1803 by William Hyde Wollaston, who named it palladium after the asteroid Pallas, which in turn, was named after the epithet of the goddess Athena, acquired by her when she slew the giant Pallas. The symbol for palladium is Pd, and its atomic number is 46. Palladium, along with platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). PGMs share similar chemical properties, but palladium is unique in that it has the lowest melting point and is the least dense of these precious metals. Incredibly, when palladium is at room temperature and atmospheric pressure, it can absorb up to 900 times its own volume of hydrogen, which makes palladium an efficient and safe storage medium for hydrogen and hydrogen isotopes. Palladium is also tarnish resistant, electrically stable and resistant to chemical erosion as well as intense heat.

 

  • Listed below are a selection of some more commonly used sizes. If you do not see anything that suits your needs, please click on the custom request forms and send us your requirements.
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Form

P2-5002-M

Pd Pellets 6mm dia. x 6mm 99.95% Pure

Palladium

P2-5009-M

Pd Pellets 3mm x 3mm 99.95% Pure

Palladium

P2-10002-P

PdCl2  -8 Mesh  99.9% Pure

Palladium Chloride

8 UN1759 PG 11

P2-10003-P

PdO -20 Mesh 99.95% Pure

Palladium Oxide

P2-2001-R

Pd Rod 3.18mm diameter 99.95% pure

Palladium

P2-2002-R

Pd Rod 6.35mm diameter 99.95% pure

Palladium

P2-2003-R

Pd Rod 12.7mm diameter 99.95% pure

Palladium

PD-SHT-0.5

Pd sheet Thickness 0.50mm (0.020")

Purity 99.95%, Palladium

PD-SHT-0.76

Pd sheet Thickness 0.76mm (0.030")

Purity 99.95%, Palladium

PD-SHT-1

Pd sheet Thickness 1.0mm (0.040")

Purity 99.95%, Palladium

PD-SHT-1.5

Pd sheet Thickness 1.5mm (0.060")

Purity 99.95%, Palladium

P2-1002-W

Pd Wire 0.05mm dia. 99.95% pure

Palladium

P2-1004-W

Pd Wire 0.1mm dia. 99.95% pure

Palladium

P2-1006-W

Pd Wire 0.15mm dia. 99.95% pure

Palladium

P2-1008-W

Pd Wire 0.2mm dia. 99.95% pure

Palladium

P2-1013-W

Paliney® 7 Wire 0.75mm diameter

P2-1014-W2

Paliney® 7 Wire 1mm diameter

P2-9000-D

Palladium Pd, Purity 99.95%

P2-9001-D

Palladium-Nickel Pd-Ni,

Available in various ratios wt% or at%, Purity 99.95%

P2-9002-D

Palladium-Copper Pd-Cu,

Available in various ratios wt% or at%, Purity 99.95%

P2-9011-D

Palladium-Silver Pd-Ag,

Available in various ratios wt% or at%, Purity 99.95%

PD-F-0.1

Pd Foil Thickness 0.1mm (0.004") Purity 99.95%

Palladium 

PD-F-0.15

Pd Foil Thickness 0.15mm (0.006") Purity 99.95%

Palladium 

PD-F-0.2

Pd Foil Thickness 0.2mm (0.008") Purity 99.95%

Palladium 

G4-9001-D5

Au-Pd 60-40wt% TRG 25.4mm dia. x 0.1mm Tk 99.99% pure

Gold-Palladium alloy

P2-9000-D23

Pd TRG 57mm dia. x 0.3mm Tk 99.95% Pure

Palladium

PD-ST-2-3-3N5
Pd TRG 50.8mm x 3mm Tk 99.95% PurePalladium
PD-ST-2-318-3N5
Pd TRG 50.8mm dia. x 3.18mm Tk 99.95% PurePalladium
PD-ST-3-318-3N5
Pd TRG 76.2mm dia. x 3.18mm Tk 99.95%Palladium

The unique properties of palladium and other PGMs account for their widespread use. One in four goods manufactured today either contain PGMs or had PGMs play a key role during their manufacturing process. Over half of the supply of palladium and its sister metal platinum goes into catalytic converters, which convert up to 90% of harmful gases from auto exhaust (hydrocarbons, carbon monoxide and nitrogen oxide) into less harmful substances (nitrogen, carbon dioxide and water vapor). Palladium’s precious metal qualities and appearance generate significant consumption in the luxury jewelry market. Palladium is found in many electronics including computers, mobile phones, multi-layer ceramic capacitors, component plating, low voltage electrical contacts, and SED/OLED/LCD televisions. Palladium is also used in dentistry, medicine, hydrogen purification, chemical applications, groundwater treatment, and it plays a key role in the technology used for fuel cells, which combines 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 in the Transvaal in South Africa, the Stillwater Complex in Montana, USA, the Sudbury District of Ontario, Canada, and the Norilsk Complex in Russia. In addition to mining, recycling is also a source of palladium, mostly from scrapped catalytic converters. The numerous applications and limited supply sources of palladium result in palladium drawing considerable investment interest.

Symbol Pd
Atomic number 46
No. of naturally occurring isotopes 6
Atomic weight 106.42
Electronic configuration [Kr]4d10
Metal radius(12-coordinate)/pm 137
Effective ionic radius(6-coord)/pm IV 61.5
Effective ionic radius(6-coord)/pm III 76
Effective ionic radius(6-coord)/pm II 86
Density (20°C)/gcm3 11.99
Melting point / °C 1552
Boiling point / °C 2940
ΔHfus/kJmol-1 17.6(+/-2.1)
ΔHvap/kJmol-1 362(+/-ll)
ΔHf(monoatomic gas)/kJmol-1 377(+/-3)
Electrical resistivity
(20°C)/μohm cm 9.93
Electronegativity χ 2.2
Temperature (oC) @Vap. Pressure
10-8 Torr 842
10-6 Torr 992
10-4 Torr 1192
Techniques
Electron Beam Excellent
Crucible Al2O3
Coil Tungsten
Boat Tungsten
Remarks
Alloys with refractory metals; rapid Evaporation suggested. Spits in EB.