High Purity Iridium
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Iridium

 

MATERIAL OVERVIEW

Characteristics: Silver-white. Low ductility. Does not tarnish in air. On heating strongly, a slightly volatile oxide is formed. Insoluble in acid, slowly soluble in aqua regia and in fused alkalies. Most corrosion-resistant element, modulus of elasticity is one of the highest. Highly resistant to chemical attack. Toxicity is probably low.  Due to the brittle nature of iridium the fabrication of rod requires melting iridium sponge into a cylindrical shaped ingot and grinding to the finish diameter. 

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GENERAL PROPERTIES

Symbol:

Ir

Atomic Number:

77

Atomic Weight:

192.22

Density:

22.42 gm/cc

Melting Point:

2410 oC

Boiling Point:

4130 oC

Thermal Conductivity:

1.47 W/cm/K @ 298.2 K

Electrical Resistivity:

5.3 microhm-cm @ 20 oC

Electronegativity:

2.2 Paulings

Specific Heat:

0.0317 Cal/g/K @ 25 oC

Heat of Vaporization:

152 K-cal/gm atom at 4130 oC

Heat of Fusion:

6.6 Cal/gm mole

 

TYPICAL ANALYSES

Impurities in ppm

Material / Purity:

3N5

4N

Pt 185 -
B <5 -
Mg <10 10
Ni <5 -
Zn <10 -
Pb 10 -
Cr 10 -
Mn <10 -
Fe <10 20
Pd <10 -
Co <1 -
Sn <5 -
As <20 -
Sb <10 -
Bi <1 -
Te <20 -
Ag - 10
Ca - 10
Cu - 10
Na - 10
Si - 20

 

IRIDIUM ROD

Material

Purity

Iridium rod .250" 3N5, 4N

Additional diameters are available upon request. Call or e-mail for a quotation.

IRIDIUM POWDER, SHOT, PELLETS, & INGOT

Material

Purity

Iridium Shot .125" 3N5, 4N
Iridium Pellets  .125"D X .250"L 3N5, 4N
Iridium Pellets .250"D X .250"L 3N5, 4N
Iridium Ingot 3N5, 4N
IridiumPowder-100 Mesh 3N5, 4N
Iridium Powder-325 Mesh 3N5, 4N

Powder, shot, pellets, and ingots are packaged to order and sold by the gram.

 

 

Material Safety Data Sheet - MSDS
Iridium MSDS
Technical Data Sheets
Iridium
Understanding Mesh Sizes
 
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