Category

Palladium

Catalogue

Atomic structure
Discovery
Source
Element USES
physical property
Chemical property
Geological data
Biology data

Atomic structure

Atomic radius/A: 1.79
Atomic volume/cm3 / mol: 8.9

Electronic configuration: 1 2 3 4 s2p6 s2 s2p6d10 s2p6d10
Ion radius/A: 0.86

Covalent radius/A: 1.28 oxidation state: 2, 4

Discovery

1803 by W.H. Wollaston (Britain, London) found.

Source

From platinum, nickel, copper and GongKuang get, mainly from Russia of Siberia, urals, Canada's anda lo wu and South Africa.

Element USES

As an alloy, used for wireless communications equipment switch system, relay, the reforming catalyst cracking oil, also used the ceramic metallization processing, and mixed with gold jewelry manufacturing "platinum".

physical property

State: soft color of silver metal, in the air will not lose its luster, and can be hot nitric acid and boiling sulfuric acid erosion.

Melting point (℃) : 1552
Boiling point (℃) : 2964
Density (g/cc, 300 K) : 12.02


Than hot/J/gK: 0.24
Evaporation heat/KJ/mol: 357
Melting hot/KJ/mol: 17.6


Conductive rate / 106 / cm: 0.095
Coefficient of thermal conductivity/W/cmK: 0.718

Geological data

abundance
Retention time/year: 50 000

The sun (relative to the H = 1 x 1012) : 32 sea/P.P.M. :
The earth's crust/P.P.M. : c. 6 x 10-4 the Atlantic ocean surface: unknown Pacific surface: 1.9 x 10-8
Atmospheric/P.P.M. (volume) : the Atlantic ocean depths: unknown depths of the Pacific Ocean: 6.8 x 10-8

Biology data

Content in the human body
Liver/P.P.M. :
Organs: unknown, but very low. Muscle/P.P.M. :
Blood/mg dm-3: th intake/mg: unknown
Bone/P.P.M. : people (70 Kg) are total body/mg: unknown

Detailed information

Palladium/Pd