Step on the throttle and the mixture is pumped past a catalyst made of ruthenium.
From the economist.com
The first Haber-Bosch reaction chambers used osmium and ruthenium as catalysts.
From the en.wikipedia.org
Small amounts of ruthenium can increase the hardness of platinum and palladium.
From the en.wikipedia.org
As you can see in the above image, ruthenium is a hard, lustrous silvery metal.
From the guardian.co.uk
Cl and can be converted to the ruthenium analog via a transmetalation reaction.
From the en.wikipedia.org
Further experimentation showed that simple ruthenium complexes alone did not work.
From the sciencedaily.com
Like the other metals of the platinum group, ruthenium is inert to most chemicals.
From the en.wikipedia.org
The researchers designed a molecular probe based on the metallic element ruthenium.
From the sciencedaily.com
Many of us have met ruthenium whilst admiring expensive writing instruments.
From the guardian.co.uk
More examples
A rare polyvalent metallic element of the platinum group; it is found associated with platinum
Ruthenium is the chemical element with the atomic number 44, and is represented by the symbol Ru. It is a rare transition metal of the platinum group of the periodic table; and like the other metals of the platinum group, ruthenium is inert to most other chemicals. ...
A metallic chemical element (symbol Ru) with an atomic number of 44
Another of the platinum group of precious metals, it is usually abbreviated Ru or Ruth. Ruthenium in small amounts is added to platinum alloys to strengthen and harden them.
Metal element; symbol Ru; of the platinum group of metals; often oxidised in jewellery to give a stable dark grey [black] metallic plating finish