| Ruthenium [Ru] (CAS-ID: 7440-18-8) | |
| An: 44 N: 57 Am: 101.07 (2) | |
| Group No: 8 Group Name: Precious metal or Platinum group metal | |
| Block: d-block Period: 5 | |
| State: solid | |
| Colour: silvery white metallic Classification: Metallic | |
| Boiling Point: 4423K (4150'C) | |
| Melting Point: 2607K (2334'C) | |
| Density: 12.45g/cm3 | |
 Discovery Information |
| Who: Karl Klaus |
| When: 1844 |
| Where: Russia |
| Name Origin |
| From Ruthenia Latin name of Russia. |
| Sources |
| Found in the minerals pentlandite and pyroxinite. It is also possible to extract Ruthenium from spent nuclear fuel, which contains an average of 2 kg per metric ton. |
| Uses |
| Used to harden platinum and palladium. Also used in eye treatments, thickness meters for egg shells, fountain pen points, and electrical contacts. Aircraft magnetos use platinum alloy with 10% ruthenium. |
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