- ruthenium alloys
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Универсальный англо-русский словарь. Академик.ру. 2011.
ruthenium alloys
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Ruthenium — (pronEng|ruːˈθiːniəm) is a chemical element that has the symbol Ru and atomic number 44. A rare transition metal of the platinum group of the periodic table, ruthenium is found associated with platinum ores and used as a catalyst in some platinum … Wikipedia
ruthenium — Symbol: Ru Atomic number: 44 Atomic weight: 101.07 Hard white metallic transition element. Found with platinum, used as a catalyst in some platinum alloys. Dissolves in fused alkalis, and is not attacked by acids. Reacts with halogens and oxygen… … Elements of periodic system
ruthenium — [ro͞othē′nē əm] n. [ModL: so named (1828) by G. W. Osann, Estonian Russian chemist who produced it in impure form < ML Ruthenia, Russia (source of the ore) + IUM] a rare, very hard and brittle, silver gray chemical element, one of the platinum … English World dictionary
ruthenium — /rooh thee nee euhm, theen yeuhm/, n. Chem. a steel gray, rare metallic element, belonging to the platinum group of metals. Symbol: Ru; at. wt.: 101.07; at. no.: 44; sp. gr.: 12.2 at 20°C. [1840 50; < NL, named after RUTHENIA (from the fact that… … Universalium
Ruthenium — Eigenschaften … Deutsch Wikipedia
ruthenium — noun Etymology: New Latin, from Medieval Latin Ruthenia Ruthenia Date: 1848 a rare hard silvery white metallic element occurring in platinum ores and used especially as a catalyst and to harden alloys see element table … New Collegiate Dictionary
ruthenium — A metallic element of the platinum group; atomic no. 44, atomic wt. 101.07; 106Ru, with a half life of 1.020 years, has been used in the treatment of certain eye problems. [Mediev. L. Ruthenia, Russia, where first obtained] * * * ru·the·ni·um rü… … Medical dictionary
ruthenium — n. Chem. a rare hard white metallic transition element, occurring naturally in platinum ores, and used as a chemical catalyst and in certain alloys. Usage: Symb.: Ru. Etymology: med.L Ruthenia Russia (from its discovery in ores from the Urals) … Useful english dictionary
platinum group — ▪ chemical element group Introduction six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and … Universalium
Titanium alloy — Titanium alloys are metallic materials which contain a mixture of titanium and other chemical elements. Such alloys have very high tensile strength and toughness (even at extreme temperatures), light weight, extraordinary corrosion resistance,… … Wikipedia
Iridium — (pronEng|ɪˈrɪdiəm) is a chemical element that has the symbol Ir and atomic number 77. A very hard, brittle, silvery white transition metal of the platinum family, iridium is the second densest element and is the most corrosion resistant metal,… … Wikipedia
