钌是稀贵铂族金属之一。在地壳中含量为5×10~(-7)％,由于极度分散于各种矿石中,铂族金属很晚才被人类所认识。钌是一八八四年被喀山化学家克劳斯发现的。它是一种银白色金属(化学性质非常稳定),比重为12.2,熔点2500℃,沸点4900℃,导电性(Hg=1)10。钌及其合金性能良好,具有耐酸、耐碱、耐磨、耐高温等特点。近年 Ruthenium is one of the rare platinum group metals. In the crust, the content of 5 × 10 -7%, due to the extreme dispersion in a variety of ores, platinum group metal was recognized by humans. Ruthenium was discovered by Kazan chemist Klaus in 1884. It is a silvery white metal (chemically very stable) with a specific gravity of 12.2, a melting point of 2500 ° C, a boiling point of 4900 ° C and electrical conductivity (Hg = 1) 10. Ruthenium and its alloys perform well with acid, alkali, abrasion, high temperature and other characteristics. in recent years