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目前已知铁共有34个同位素，其中四种是稳定的同位素， 54 Fe（丰度5.845%）， 56 Fe（丰度91.754%）， 57 Fe（丰度2.119%）和 58 Fe（丰度0.282%）。 This comprehensive guide illuminates iron’s fundamental role in construction, manufacturing, and technology. 铁有多种氧化物，其中 四氧化三铁 （Fe 3 O 4）和 三氧化二铁 （Fe 2 O 3）较为常见。 虽然 氧化亚铁 存在，但它在室温下不稳定。
26 Fe 铁 55.845 27 Co 钴 58.933 28 Ni 镍 58.693 29 Cu 铜 63.546 30 Zn 锌 65.38 31 Ga 镓 69.723 32 Ge 锗 72.630 33 As 砷 74.922 34 Se 硒 78.971 35 Br 溴 79.904 36 Kr 氪 83.798 5 37 Rb 铷 85.468 38 Sr 锶 87.62 39 Y 钇 88.906 40 Zr 锆 91.224 41 Nb 铌 92.906 42 Mo 钼 95.95 43 Tc 锝 (98) 44 Ru 钌 101.07 45 Rh 铑 102.91 46 Pd 钯. \ce {Fe^2+} 溶液加入 \ce {KCN} 溶液，生成白色沉淀 \ce {Fe (CN)2} ，当 \ce {KCN} 过量时， \ce {Fe (CN)2 } 溶解生成 \ce {K4 [Fe (CN)6]} ,从溶液中析出黄色晶体 \ce {K4 [Fe (CN)6].3H2O} 俗称 黄血盐 Iron is primarily obtained from the minerals hematite (fe 2 o 3) and magnetite (fe 3 o 4)
The minerals taconite, limonite (feo (oh)·nh 2 o) and siderite (feco 3) are other important sources.
Iron makes up 5 percent of earth’s crust and is second in abundance to aluminum among the metals. 可以使用 Fe2p 的卫星峰区分 Fe 的各种氧化态。 主峰与卫星峰的相对结合能和强度比因化合物而异，例如，相较于 FeO，FeCl 2 具有非常强的卫星峰。 Iron has four stable isotopes 54 fe (5.845% of natural iron), 56 fe (91.754%), 57 fe (2.119%) and 58 fe (0.282%)
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