SiteLock
 
Service-Hotline: +43-1-2936882   Visit us on facebook      

A leading supplier for high purity elements, periodic table display samples for research, education and collection - Living science...
   Home | About us | About the Elements | Terms/conditions | References | Sponsoring |Guestbook | Contact | Deutsch

Ru
Ruthenium
Atomic no.:
44
Atom. weight: 101.07
Density: 12.2
Class:
platinum metal
Melting point: 2310°C
Boiling point: 3900°C
Colour: silvery shiny
   
Discoverer: J.A. Sniadecki, G.W. Osnann
Place: Poland, Russia
Year: 1808, 1928

Ruthenium was initially discovered in 1808 by J.A. Sniadecki at the University of Vilno, Poland and then again by G.W. Osnann in 1828 at the University of Tartu, Russia. Ruthenium is a rare member of the platinum group of metals (abundance 0.001 ppm in the earth's crust). It is a lustrous, silvery colored metal which is unaffected by air, water and acids, but is soluble in fused alkalis. Extraction of the metal is achieved by several techniques; for example, extraction of the mixed platinum group metals by dissolution in aqua regia, followed by treatment of the various soluble and insoluble fractions. Applications of the metal are limited; as a pure metal, ruthenium is extremely hard and brittle and, consequently, difficult to machine. It is relatively unreactive, and is used as an alloying element with platinum and palladium to produce alloys which have improved wear resistance, and with titanium to improve the material's corrosion resistance. In all cases, the ruthenium addition has to be less than 15%, otherwise the resultant alloy is too hard to work.

Views: 139388



  entries 1 to 8 from 358 Gallery view   periodic table

 Acrylic Element-block Ruthenium Ru - 50mm  Art. Nr. 004334  
Acrylic Element-block Ruthenium Ru - 50mm
magnify Click to zoom!

The Sensation! Acrylic Element-blocks NEW!

Ruthenium Ru - 2 pcs. Pure vacuum melted Ruthenium beads ~3 grams in total.


Warning: include(Angebote/Ext/Acrylic-cubes_.inc) [function.include]: failed to open stream: No such file or directory in /kunden/84697_1030/webseiten/imager.php on line 371

Warning: include() [function.include]: Failed opening 'Angebote/Ext/Acrylic-cubes_.inc' for inclusion (include_path='.:/usr/local/lib/php:/kunden/84697_1030/webseiten/') in /kunden/84697_1030/webseiten/imager.php on line 371

Amount: 1 St.
Purity : 99.98%
Packing: PE bag
199.00 Euro
- tax free

Stock quantity: 5 available

All pictures are copyright protected and may not be used without our permission!

Request information
Amount:
 

 

   
smart-elements.com - Last software update from 17.11.2013 - All rights reserved
Idea, Design & Programming © by Juergen Bauer & Maria Lidia Biscayart - All rights reserved