Ruthenium Shot


Characteristics: A rare silvery polyvalent hard white metal, ruthenium is a member of the platinum group. Ruthenium is inert to most other chemicals and insoluble in acids and in aqua regia. Attacked by alkaline oxidants (conc. NaOH solution), and by fused alkalies. Most ruthenium produced is used in electronics for wear-resistant electrical contacts and the production of thick-film resistors.

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Atomic Number:


Atomic Weight:



12.41 gm/cc

Specific Gravity

12.41 @ 20 oC

Melting Point:

2310 oC

Boiling Point:

3900 oC

Thermal Conductivity:

1.17 W/cm/K @ 298.2 K

Electrical Resistivity:

7.6 microhm-cm @ 0 oC


2.2 Paulings

Specific Heat:

0.057 Cal/g/K @ 25 oC

Heat of Vaporization:

148 K-cal/gm atom at 3900 oC

Heat of Fusion:

6.1 Cal/gm mole


TYPICAL ANALYSES - Impurities in ppm

Material / Purity:



Ag 100 <10
Ca 100 <10
Cu 50 5
K 100 <10
Mg 200 20
Na 100 10
Pd 50 5
Rh 10 1
Si 100 10




Ruthenium Rod .250” 3N
Ruthenium Rod .500” 3N

Rod is cut to order and sold by the inch or foot. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters or custom sizes.




Ruthenium Shot 3-6mm  camera1 3N5
Ruthenium Sponge 3N5
Ruthenium Powder -120 Mesh 3N5
Ruthenium Powder -325 Mesh 3N5

Powder, shot, pellets, ingots and sponge are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.




Ruthenium Oxide RuO2  -325 Mesh 3N5

Compounds are packaged to order and sold by the gram or kilogram.


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

Home Page Content Under Periodic Table


Click on the Alloy to go to the Online Catalog page.


Welcome to

ESPI was incorporated in 1950 with a mission to provide a competitive source for high purity metals, metal compounds and alloys. We are a valuable resource for virtually all major universities worldwide, global corporate R&D laboratories, thousands of domestic and international manufacturing companies and all U.S. government research laboratories. ESPI offers unique advantages often unavailable from larger organizations with no minimum order size & all business hour calls are handled by a competent sales representative. Automated answering systems and voice mail are not an option at ESPI.

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ESPI produces and sells 68 elements and dozens of alloys in various forms for your custom needs. Click on the forms below to be directed to detailed information on manufacturing.



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