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Ruthenium (Ru) Metal & Powder Designations:
Chemical Name: Ruthenium
Chemical Formula: Ru
Ruthenium (Ru) Metal & Powder Description:
a) Ruthenium, a member of the platinum group, is a hard, lustrous, white metal that does not tarnish at room temperatures. It does not occur native, but in combination with other platinum group metals.
b) Ruthenium combines with platinum and palladium as an effective hardener, creating alloys that are extremely wear resistant. It improves the corrosion resistance of titanium and is superconductive when combined with molybdenum.
Ruthenium (Ru) Metal & Powder Chemical Properties Available:
99.9% to 99.99+%
Ruthenium (Ru) Metal & Powder Physical Properties Available:
Ruthenium (Ru) Metal & Powder Typical Applications:
Multilayered coatings, hardener, improves corrosion resistance in titanium, superconductive when combined with molybdenum
Due to its ability to harden platinum and palladium, ruthenium is used in platinum and palladium alloys to make wear-resistant electrical contacts. Because of its lower cost and similar properties compared to rhodium, the use as plating material for electric contacts is one of the major applications. The coatings are either put on by electroplating or sputtering.
Ruthenium dioxide and lead and bismuth ruthenates, the later with perovskite crystal structure,are used thick film chip resistors. A mixture of the one of the above mentioned substances is mixed with a glass substrate and printed on a ceramic material and heated to 860°C. The first two applications account for 50% of the ruthenium consumption.
It is sometimes alloyed with gold in jewelry. 0.1% ruthenium is added to titanium to improve its corrosion resistance.
Ruthenium is also used in some advanced high-temperature single-crystal superalloys, with applications including the turbine blades in jet engines. Two nickel based superalloy compositions described in the literature are EPM-102 (with 3 % Ru) and TMS-162 (with 6 % Ru), both contain 6 % rhenium.
Fountain pen nibs are frequently tipped with alloys containing ruthenium. From 1944 onward, the famous Parker 51 fountain pen was fitted with the "RU" nib, a 14K gold nib tipped with 96.2% ruthenium and 3.8% iridium.
Ruthenium is also a versatile catalyst. Hydrogen sulfide can be split by light by using an aqueous suspension of CdS particles loaded with ruthenium dioxide. This may be useful in the removal of H2S from oil refineries and from other industrial processes.
Ruthenium is a component of mixed-metal oxide (MMO) anodes used for cathodic protection of underground and submerged structures, and for electrolytic cells for chemical processes such as generating chlorine from saltwater.
Organometallic ruthenium carbene and allenylidene complexes have recently been found as highly efficient catalysts for olefin metathesis with important applications in organic and pharmaceutical chemistry.
The fluorescence of some ruthenium complexes is quenched by oxygen, which has led to their use as optode sensors for oxygen.
Ruthenium red, [(NH3)5Ru-O-Ru(NH3)4-O-Ru(NH3)5]6+, is a biological stain used to stain polyanionic molecules such as pectin and nucleic acids for light microscopy and electron microscopy.
The beta-decaying isotope 106 of ruthenium is used in radiotherapy of eye tumors, mainly malignant melanomae of the uvea.
Ruthenium-centered complexes are being researched for possible anticancer properties. Ruthenium, unlike traditional platinum complexes, show greater resistance to hydrolysis and more selective action on tumors. NAMI-A and KP1019 are two drugs undergoing clinical evaluation against metastatic tumors and colon cancers.
Ruthenium (Ru) Metal & Powder Packaging Options:
To customer specification
Ruthenium (Ru) Metal & Powder TSCA (SARA Title III) Status:
Listed. For further information please call the E.P.A. at 202.554.1404
Ruthenium (Ru) Metal & Powder Chemical Abstract Service Number: