Ru is a rare transition metal in the platinum group of the periodic table. Ru was discovered in 1844 by Karl Ernst Claus, who named it after the Latin name of his homeland, Ruthenia, Russia. Ru has wide ranging uses. In the electronics industry it is used in chip resistors and electrical contacts, as it hardens Pt and Pd alloys. In the chemical industry it is used as an anode coating in the production of chlorine and in catalysts for the production of ammonia and acetic acid. Even reaching the world of biology Ru coordination complexes are being researched as anti-cancer drugs.
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