Ruthenium is primarily used for wear-resistant electrical contacts and the 

production of thick-film resistors. Ruthenium is one of the most effective hardeners 

for platinum and palladium and is alloyed with these metals to make electrical 

contacts for extremely wear resistant electronics and laboratory equipment. The 

corrosion resistance of titanium is improved a hundredfold by the addition of 0.1% 

ruthenium. Ruthenium is also a versatile catalyst. Hydrogen sulfide can be split 

catalytically by light using an aqueous suspension of cadmium sulfide particles 

loaded with ruthenium dioxide. Ruthenium is available as metal and compounds 

with purities from 99% to 99.999% (ACS grade to ultra-high purity).  High Purity 

(99.999%) Ruthenium (Ru) Sputtering TargetHigh Purity (99.999%) Ruthenium 

Oxide (RuO2·xH2O)PowderElemental or metallic forms include pellets, rod, wire 

and granules for evaporation source material purposes. Ruthenium nanoparticles 

and nanopowders provide ultra-high surface area. Ruthenium oxides are available 

in powder and dense pellet form for such uses as optical coating and thin film 

applications. Oxides tend to be insoluble. Fluorides are another insoluble form for 

uses in which oxygen is undesirable such as metallurgy, chemical and physical 

vapor deposition and in some optical coatings. Ruthenium is also available in 

soluble forms including chlorides, nitrates and acetates. These compounds can be 

manufactured as solutions at specified stoichiometries.