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ruthenium |
2 definitions found From WordNet r 1.6 [wn]: ruthenium n : a rare polyvalent metallic element of the platinum group it is found associated with platinum [syn: {Ru}, {atomic number 44}] From Elements database 20001107 [elements]: 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 at high temperatures. Isolated in 1844 by K.K. Klaus.
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