Ruthenium is member of the platinum group of metals. It is one of the most effective hardeners for platinum and palladium, and is alloyed with these metals to make electrical contacts for severe wear resistanant electronics and laboratory equipment. The corrosion resistance of titanium is improved a hundredfold by addition of 0.1% ruthenium. It 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. It is also believed to have pharmacological applications.
Ruthenium is a Block D, Group 8, Period 5 element. The electronic configuration is [Kr] 4d7 5s1. In its elemental form ruthenium's CAS number is 7440-18-8. The ruthenium atom has a radius of 132.5.pm and it's Van der Waals radius is 200.pm.
Ruthenium was first discovered by Karl Klaus in 1844.
French: ruthenium, German: Ruthenium, Italian: rutenio, Portuguese: Rutenio, Spanish: rutenio, Swedish: Rutenium
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