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osmium
  • 英语发声
  • 美语发声
  • n. [化学] 锇
  • 网络释义

    1、[化学]锇
    锇(Os)

    短语

    osmium sesquioxide三氧化二锇

    Osmium trichloride三氯化锇

    Osmium oxide[无化] 氧化锇

    osmium pentacarbonyl五羰基合锇

    osmium isotopeos同位素

    osmium disulfide二硫化锇

    osmium fluoride八氟化锇

    osmium monoxide一氧化锇

    osmium complexes金属锇配合物

    专业释义

    化学
    • In chapter 4,the reaction of CO and the unstable compound 4-1 was investigated, giving the osmium vinyl compound 4-2.

      第四章研究了CO配体与不稳定的化合物4-1的反应,得到稳定的乙烯基化合物4-2。 推测了4-1可能为含金属氢的亚乙烯基化合物。

      参考来源 - 锇吡啶盐和锇萘的反应性研究
    生物学
    • 饿
    地球科学
    • 自然锇
    能源科学技术

    英英释义

    osmium [ 'ɔzmiəm, 'ɔs- ]

    n.a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known

    同义词:Osatomic number 76




    英汉双解大词典

    osmium /ˈɒzmɪəm/

    • 1.  

      N(名词) a very hard brittle bluish-white metal occurring with platinum and alloyed with iridium in osmiridium: used to produce platinum alloys, mainly for pen tips and instrument pivots, as a catalyst, and in electric-light filaments. Symbol: Os; atomic no: 76; atomic wt: 190.2; valency: 0 to 8; relative density: 22.57; melting pt: 3033±30°C; boiling pt: 5012±100°C 锇