Iron Elemental Symbol

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Fer Eisen Ferro Ferro Hierro Järn

Iron Bohr ModelIron(Fe) atomic and molecular weight, atomic number and elemental symbolIron is a Block D, Group 8, Period 4 element. The number of electrons in each of Iron's shells is 2, 8, 14, 2 and its electron configuration is [Ar] 3d6 4s2. Elemental IronThe iron atom has a radius of and its Van der Waals radius is In its elemental form, CAS 7439-89-6, Iron has a lustrous grayish metallic appearance. Iron is the fourth most common element in the Earth's crust and the most common element by mass forming the planet earth as a whole. Iron is usually found in the form of magnetite (Fe3O4), hematite (Fe2O3), goethite (FeO(OH)), limonite (FeO(OH) . n(H2O)) or siderite (FeCO3). It is rarely found in its metallic form since it tends to oxidize. Iron was first discovered by Early Man.

Iron and its compounds have numerous uses. It is the most commonly used metal for commercial applications due to its hardness, historical availability, and low cost. Once used on its own, it is now alloyed with carbon, nickel and other elements to produce steel and other high strength, non-corrosive, structural metals. High Purity (99.999%) Iron Oxide (Fe2O3) PowderIron is a primary colorant in glass and ceramics. High Purity (99.999%) Iron (Fe) Sputtering TargetIt is also used as a catalyst. It is the basis for low grade magnets and, because of its magnetic properties, is used in memory tape and magnetic resonance imaging (MRI). Iron is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity). Elemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. Iron nanoparticles and nanopowders provide ultra-high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits. Oxides are available in powder and dense pellet form for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Fluorides are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Iron is also available in soluble forms including chlorides, nitrates and acetates. These compounds can be manufactured as solutions at specified stoichiometries.

Iron is not toxic; however, safety data for Iron and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the Products tab below.

  • Properties
  • Safety Data
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  • Research
  • Isotopes
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Iron Properties

Symbol: Fe Melting Point: 1811 K, 1538 °C, 2800 °F
Atomic Number: 26 Boiling Point: 3134 K, 2862 °C, 5182 °F
Atomic Weight: 55.845 Density: 7.874 g·cm−3
Element Category: transition metal Liquid Density @ Melting Point: 6.98 g·cm−3
Group, Period, Block: 8, 4, d Specific Heat: 0.45 kJ/kg K
    Heat of Vaporization 340.2 kJ mol-1
CHEMICAL STRUCTURE Heat of Fusion 14.9 kJ mol-1
Electrons: 26 Thermal Conductivity: 80.4 W·m−1·K−1
Protons: 26 Thermal Expansion: (25 °C) 11.8 µm·m−1·K−1
Neutrons: 30 Electrical Resistivity: (20 °C) 96.1 nΩ·m
Electron Configuration: [Ar] 3d64s2 Electronegativity: 1.83 (Pauling scale)
Atomic Radius: 126 pm Tensile Strength: 20 KPSI
Covalent Radius: 132±3 (low spin), 152±6 (high spin) pm Molar Heat Capacity: 25.10 J·mol−1·K−1
Van der Waals radius: 200 pm Young's Modulus: 211 GPa
Oxidation States: 6, 5, 4, 3, 2, 1, -1, -2 (amphoteric oxide) Shear Modulus: 82 GPa
Phase: Solid Bulk Modulus: 170 GPa
Crystal Structure: body-centered cubic/ face-centered cubic Poisson Ratio: 0.29
Magnetic Ordering: ferromagnetic Mohs Hardness: 4
1st Ionization Energy: 762.47 kJ mol-1 Vickers Hardness: 608 MPa
2nd Ionization Energy: 1561.90 kJ mol-1 Brinell Hardness: 490 MPa
3rd Ionization Energy: 2957.49 kJ mol-1 Speed of Sound: (r.t.) (electrolytic) 5120 m·s−1
CAS Number: 7439-89-6 Abundance in typical human body, by weight: 60000 ppb
ChemSpider ID: 22368 Abundance in typical human body, by atom: 6700 ppb
PubChem CID: 23925 Abundance in universe, by weight: 1100000 ppb
MDL Number: MFCD00010999 Abundance in universe, by atom: 20000 ppb
EC Number: 231-096-4 Discovered By: N/A
Beilstein Number: N/A Discovery Date: before 5000 BC
SMILES Identifier: [Fe]  
InChI Identifier: InChI=1S/Fe Other Names: Ferrum, Fer, Eisen, Ferro, Hierro

Iron Products

Metal Forms  •  Compounds  •  Alloys  •  Oxide Forms  •  Organometallic Compounds
Sputtering Targets  •  Nanomaterials  •  Semiconductor Materials •  Isotopes

Metal Forms

Iron Balls
Iron Bands
Iron Bars
Iron Bits
Iron Board
Iron Briquette
Iron Capsules
Iron Chips
Iron Circle
Iron Coil
Iron Coins
Iron Concentrate
Iron Crucibles
Iron Cylinder
Iron Disc
Iron Dust
Iron Electrodes
Iron Flake
Iron Flanges
Iron Foam
Iron Foil
Iron Fragments
Iron Grain
Iron Granules
Iron Honeycomb
Iron Ingot
Iron Insulated Wire
Iron Lump
Iron Metal
Iron Microfoil
Iron Microleaf
Iron Mesh
Iron Nugget
Iron Particles
Iron Parts
Iron Pebbles
Iron Pellets
Iron Pieces
Iron Pills
Iron Plate
Iron Powder
Iron Precipitate
Iron Puck
Iron Residue
Iron Ribbon
Iron Rings
Iron Rocks
Iron Rod
Iron Samples
Iron Scraps
Iron Segments
Iron Shaving
Iron Sheet
Iron Shot
Iron Sleeves
Iron Slugs
Iron Specimens
Iron Spheres
Iron Sponge
Iron Spring
Iron Strip
Iron Tape
Iron Tube
Iron Wafer
Iron Wire
Iron Wool
Spherical Ferromagnetic Iron Powder
Ultra Thin Iron Foil

Sputtering Targets

Bismuth Ferrite Garnet Sputtering Target
Bismuth Ferrite Sputtering Target
Black Iron Oxide Sputtering Targets
Chromium Cobalt Iron Sputtering Target
Cobalt Iron Boron SputteringTarget
Cobalt Iron Gadolinium Sputtering Target
Cobalt Iron Sputtering Target
Dysprosium Iron Cobalt Sputtering Target
Dysprosium Iron Sputtering Target
Gadolinium Iron Cobalt Sputtering Target
Gadolinium Iron Sputtering Target
Hafnium Iron Sputtering Target
Iron Aluminum Sputtering Target
Iron Boron Sputtering Target
Iron Carbide Sputtering Targets
Iron Chromium Sputtering Target
Iron Cobalt Sputtering Target
Iron Fluoride Sputtering Target
Iron Gadolinium Sputtering Target
Iron Hafnium Sputtering Target
Iron Manganese Sputtering Target
Iron Nickel Sputtering Target
Iron Oxide Rotatable Sputtering Target
Iron Oxide Sputtering Target
Iron Phosphide Sputtering Target
Iron Rotatable Sputtering Target
Iron Selenide Sputtering Target
Iron Silicon Sputtering Target
Iron Sputtering Target
Iron Telluride Sputtering target
LSCF Sputtering Target
LSF Sputtering Target
Manganese Iron Sputtering Target
Neodymium Iron Boron Sputtering Target
Nickel Iron Sputtering Target
Samarium Iron Sputtering Target
Terbium Dysprosium Iron Sputtering Target
Terbium Gadolinium Iron Cobalt Sputtering Target
Terbium Iron Cobalt Sputtering Target
Terbium Iron Sputtering Target
Vanadium Iron Sputtering Target

Crystal/Semiconductor Materials

Iron Antimonide
Iron Arsenide FeAs
Iron Arsenide Fe2As
Iron Arsenide FeAs2
Iron Disulfide
Iron Phosphide
Iron Selenide
Iron Disilicide (FeSi2)
Iron Silicide (FeSi)
Iron Sulfide
Iron Telluride FeTe2
Lanthanum Iron Oxide
Single Crystal Iron Selenide Telluride
Single Crystal Iron Telluride
Yttrium Iron Garnet (YIG)


Amino Superparamagnetic Microparticles
Barium Iron Oxide Nanopowder
Chromium Cobalt Iron Nanoparticles
Cobalt Iron Oxide Nanopowder
Cobalt Iron Nanopowder
Copper Iron Oxide Nanopowder
Copper Zinc Iron Oxide Nanopowder
Fluorescent YG Superparamagnetic Microparticles
Iron Cobalt Nanopowder
Iron Hydroxide Oxide Nanopowder
Iron Nanoparticles
Iron Nanorods
Iron Nickel Copper Nanoparticles
Iron Nickel Nanopowder
Iron Nickel Oxide Nanopowder
Iron(III) Oxide Nanopowder
Iron(II,III) Oxide Nanopowder
Lithium Iron Phosphate Nanopowder
Manganese Iron Oxide Nanopowder
Magnesium Iron Oxide Nanopowder
Magnesium Zinc Iron Oxide Nanopowder
Nickel Iron Oxide Nanopowder
Nickel Zinc Iron Oxide Nanopowder Yttrium Iron Oxide Nanopowder
Zinc Iron Oxide Nanopowder


Iron 54 Metal Isotope
Iron 54 Oxide Isotope
Iron 56 Metal Isotope
Iron 57 Metal Isotope
Iron 58 Oxide Isotope
Iron-54 Oxide Isotope
Iron-57 Oxide Isotope
Iron-58 Isotope

Oxide Forms

Black Iron Oxide Particles
Iron(III) Oxide Nanopowder
Iron(II,III) Oxide Nanopowder
Iron Oxide Particles
Iron Oxide Pellets
Iron Oxide Pieces
Iron Oxide Powder
Iron Oxide Rotatable Sputtering Target
Iron Oxide Shot
Iron Oxide Sputtering Target
Iron Oxide Tablets
Red Iron Oxide Particles

Ammonium Hexacyanoferrate(II) Hydrate
Ammonium Iron(II) Sulfate Hexahydrate
Ammonium Iron(III) Sulfate Dodecahydrate
Ammonium Iron(III) Sulfate Solution
Barium Dodecairon Nonadecaoxide
Barium Ferrite
Carbonyl Iron Powder
Cobalt Ferrite
Cobalt Iron Oxide
Cobalt Iron Nickel Oxide
Copper Ferrite
Ferric Ammonium Sulfate Dodecahydrate
Ferric Chloride
Ferric Chloride Hexahydrate
Ferric Disulfide
Ferric Hydroxide Oxide
Ferric Nitrate
Ferric Nitrate/Ferric Chloride Combination Patina
Ferric Phosphate
Ferric Pyrophosphate Hydrate
Ferric Subsulfate
Ferric Subsulfate Solution
Ferric Sulfate
Ferric Sulfate Hydrate
Ferric Sulfide
Ferrosoferric Oxide Black
Ferrous Ammonium Sulfate Hexahydrate
Ferrous Chloride
Ferrous Sulfamate
Ferrous Sulfate
Ferrous Sulfate Heptahydrate
Iron Acetate
Iron Acetate Solution
Iron Aluminate
Iron Aluminide
Iron(III) Arsenate
Iron(II) Arsenate
Iron Boride FeB
Iron Boride Fe2B
Iron Bromide
Iron Bromide, Ultra Dry
Iron Carbide
Iron Carbonate
Iron Chloride
Iron Chloride, Ultra Dry
Iron Chloride Solution
Iron(II) Chloride Tetrahydrate
Iron Chromate
Iron Chromite
Iron(III) Ferrocyanide
Iron(III) Fluoride Trihydrate
Iron(II) Fluoride FeF2
Iron(III) Fluoride FeF3
Iron Iodide
Iron Iodide, Ultra Dry
Iron Lutetium Oxide
Iron Manganese Oxide
Iron(II) Molybdate
Iron Nitrate
Iron Nitrate Solution
Iron(III) Nitrate Nonahydrate
Iron Nitride Fe2N
Iron Nitride Fe4N
Iron Nitride Fe6N2
Iron Orthophosphate Hydrate
Iron(II) Oxide FeO
Iron(III) Oxide Fe2O3
Iron(II,III) Oxide Fe3O4
Iron Perchlorate
Iron(II) Perchlorate Hydrate
Iron(III) Perchlorate Hydrate
Iron(III) Phosphate Tetrahydrate
Iron(II) Phthalocyanine
Iron(III) Phthalocyanine Chloride
Iron(III) Pyrophosphate
Iron Sulfate
Iron Sulfate Hydrate
Iron Sulfate Solution
Iron(II) Sulfate Heptahydrate
Iron Sulfide Sticks
Iron Tantalate
Iron(II) Telluride
Iron(II) Tetrafluoroborate Hexahydrate
Iron(II) Titanate
Iron Titanium Oxide
Iron Tungstate
Lanthanum Strontium Cobalt Ferrite
Lanthanum Strontium Cobalt Ferrite Paste
Lanthanum Strontium Ferrite
Lithium Iron(III) Oxide
Lithium Iron Phosphate
Manganese Ferrite
Olivine Powder
Potassium Ferrate
Samarium Ferrite
Sodium Ferrocyanide Decahydrate
Sodium Hexafluoroferrate(III)
Sodium Nitroferricyanide(III) Dihydrate
Sodium Nitroprusside Dihydrate
Strontium Titanate (Iron Doped)
Terbium Dysprosium Iron
Zinc Iron Oxide

Organometallic Compounds

(+)-Iron(II) L-ascorbate
(S)-(+)-Acetyl-cyclopentadienyl-iron Carbonyl Triphenylphosphine Complex
1',2',3'4',5'-Pentaphenylferrocene carboxamide
[1,1'-Bis(diphenylphosphino)ferrocene] tetracarbonylchromium(0)
1,1'-Ferrocenedicarboxylic Acid
2,3,7,8,12,13,17,18-Octaethyl-21H,23H-porphine Iron(III) Acetate
2,3,7,8,12,13,17,18-Octaethyl-21H,23H-porphine Iron(III) Chloride
5,10,15,20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine iron(III) chloride
5,10,15,20-Tetrakis(pentafluorophenyl)-21H,23H-porphyrin iron(III) chloride
5,10,15,20-Tetrakis(pentafluorophenyl)porphyrin iron(III) chloride complex
5,10,15,20-Tetraphenyl-21H,23H-porphine Iron(III) Chloride
Iron(II) Oxalate Dihydrate
Iron(III) Oxalate Hexahydrate
Ammonium Disodium Amminepentacyanoferrate(II) Hydrate
Ammonium Disodium Pentacyanoammineferrate Dihydrate
Ammonium Iron(III) Citrate
Ammonium Iron(III) Oxalate Trihydrate
Benzenecyclopentadienyliron(II) Hexafluorophosphate
Cyclopentadienyl Iron(II) Dicarbonyl Dimer
Cyclopentadienyl(fluorene)iron(II) Hexafluorophosphate
Cyclopentadienyldicarbonyl(tetrahydrofuran)iron(II) Tetrafluoroborate
Diethylenetriaminepentaacetic Acid Iron(III) Disodium Salt Hydrate
Disodium tetracarbonylferrate Dioxane Complex
Ethylenediaminetetraacetic Acid Ferric Sodium Salt
Ethylenediaminetetraacetic acid iron(III) Sodium Salt Hydrate
Ferric Citrate
Ferroceneacetic Acid
Ferrocenecarboxylic Acid
Organometallic Compounds, continued

Ferrocenium Hexafluorophosphate
Ferrocenium Tetrafluoroborate
Ferroin Indicator Solution
Ferrous Fumarate
Ferrous Gluconate
Ferrous Oxalate
Iron 1,3,5-benzenetricarboxylate
Iron(II) 2-Ethylhexanoate
Iron(III) 2-Ethylhexanoate
Iron Acetylacetonate
Iron Ammonium Oxalate
Iron(III) Citrate
Iron(III) Citrate Tribasic Monohydrate
Iron(II) D-gluconate Dihydrate
Iron Ethoxide
Iron(II) Ethylenediammonium Sulfate Tetrahydrate
Iron(II) Gluconate Hydrate
Iron(II) Lactate Hydrate
Iron(II) Lactate Trihydrate
Iron Naphthenate
Iron(III) Oxo Acetate Perchlorate Hydrate
Iron p-toluenesulfonate Hexahydrate
Iron(0) Pentacarbonyl
Iron Phthalocyanine
Iron(II) Phthalocyanine Bis(pyridine) Complex
Iron(III) Phthalocyanine-4,4',4'',4'''-tetrasulfonic Acid, Compound with Oxygen Monosodium Salt Hydrate
Iron Trifluoromethanesulfonate
Iron Tris(2,2,6,6-tetramethyl-3,5-heptanedionate)
Potassium Trioxalatoferrate(III) Trihydrate
(R,S(p), R(SPO)-1-Phenylphosphinoyl)-2-[1-(t-butylphosphino)ethyl]ferrocene
Tetraethylammonium Tetrachloroferrate(III)
trans-4-[2-(1-Ferrocenyl)vinyl]-1-methylpyridinium Iodide
Tricarbonyl(2-methoxycyclohexadienylium) Iron Hexafluorophosphate


Aluminum Iron Alloy
Boron Cobalt Iron
Chromium Cobalt Iron
Chromium Iron Carbon Silicon  Alloy Particles
Chromium Iron Carbon Silicon Alloy Powder
Chromium Iron Nickel
Chromium Iron Tantalum
Chromium Yttrium Alloy
Cobalt Boron Silicon Iron Molybdenum Nickel Foil
Cobalt Chromium Nickel Iron Molybdenum Manganese
Cobalt Chromium Tungsten Nickel Iron Manganese Foil
Cobalt Iron
Cobalt Iron Boron
Cobalt Iron Nickel
Cobalt Iron Niobium
Cobalt Iron Zirconium
Cobalt Nickel Chromium Iron Molybdenum Titanium
Cobalt Nickel Chromium Iron Molybdenum Tungsten Titanium
Cobalt Silicon Boron Iron Nickel Foil
Cobalt Silicon Molybdenum Iron Boron Niobium Foil
Ferro Boron
Ferro Chromium
Ferro Manganese
Ferro Tungsten
Hastelloy B Alloy
Hastelloy C-22 Alloy
Hastelloy C-276 Alloy
Hastelloy C276 Foil
Hastelloy X Alloy
Havar Alloy Foil
Inconel 600 Alloy
Inconel 601 Alloy
Inconel 718 Alloy
Inconel 825 Alloy
Inconel 925 Alloy
Inconel X-750 Alloy
Inconel Crucible
Invar 36 Alloy
Invar Alloy Foil
Invar Alloy Powder
Invar Alloy Rod
Invar Alloy Sheet
Invar Alloy Tube
Invar Alloy Wire
Iron Boron Silicon Foil
Iron Chromium
Iron Chromium Foam
Iron Chromium Honeycomb
Iron Chromium Sponge
Iron Chromium Wool
Iron Chromium Aluminum Foam
Iron Chromium Aluminum Honeycomb
Iron Chromium Aluminum Sponge
Iron Chromium Aluminum Wool
Iron Chromium Carbon Alloy Particles
Iron Chromium Carbon Alloy Powder
Iron Chromium Molybdenum Foil
Iron Chromium Nickel Alloy
Iron Chromium Nickel Aluminum
Iron Chromium Nickel Copper Alloy
Iron Chromium Nickel Copper Molybdenum Niobium
Iron Chromium Nickel Copper Niobium
Iron Chromium Nickel Copper Titanium Niobium
Iron Chromium Nickel Manganese Molybdenum
Iron Chromium Nickel Molybdenum
Iron Chromium Nickel Molybdenum Aluminum
Iron Chromium Nickel Titanium Molybdenum
Iron Chunk
Iron Cobalt Vanadium Alloy
Iron Manganese Molybdenum Nickel (Permalloy)
Iron Manganese Alloy
Iron Manganese Alloy Particles
Iron Manganese Alloy Powder
Iron Manganese Chromium Molybdenum Nitrogen
Iron Neodymium Boron Alloy Particles
Iron Neodymium Boron Alloy Powder
Iron Nickel
Iron-Nickel Alloy
Iron Nickel Foil
Iron Nickel Rhodium
Iron Nickel Rod
Iron Nickel Zirconium
Iron Rhodium
Iron Silicon Alloy Particles
Iron Silicon Alloy Powder
Iron Silicon Aluminum Alloy Particles
Iron Silicon Aluminium Alloy Powder
Iron Tantalum
Iron/Titanium Powder
Neodymium Iron Boron
Nickel Chromium Iron Silicon Boron Alloy Particles
Nickel Chromium Iron Silicon Boron Alloy Powder
Nickel Copper Iron Manganese Powder
Nickel Copper Iron Manganese Rod
Nickel Iron Foam
Nickel Iron Foil
Nickel Iron Honeycomb
Nickel Iron Molybdenum Alloy
Nickel Iron Molybdenum Foil
Nickel Iron Molybdenum Wire
Nickel Iron Sponge
Nickel Iron Wool
Nickel Iron Chromium Foam
Nickel Iron Chromium Honeycomb
Nickel Iron Chromium Sponge
Nickel Iron Chromium Wool
Nickel Iron Molybdenum Foil
Nickel Iron Silicon Boron Foil
Nickel Titanium Rod
Permalloy Pellets
Stainless Steel Electrodes
Stainless Steel Foam
Stainless Steel Foil
Stainless Steel Insulated Wire
Stainless Steel Mesh
Stainless Steel Powder
Stainless Steel Shot
Stainless Steel Tube
Stainless Steel Wire
Terbium Iron Alloy
Titanium Based Aluminum Iron Alloy
Titanium Based Molybdenum Zirconium Iron Alloy
Titanium Iron Alloy
Tungsten Nickel Copper Iron Alloy
Tungsten Nickel Iron Alloy
Tungsten Nickel Iron Molybdenum Alloy
Zirconium Iron Alloy
Zirconium Scandium Iron Alloy

Recent Research & Development for Iron

  • Zhi-kai Chen, Shu-chao Lu, Xi-bin Song, Haifeng Zhang, Wan-shi Yang, Hong Zhou, Effects of bionic units on the fatigue wear of gray cast iron surface with different shapes and distributions, Optics & Laser Technology, Volume 66, March 2015
  • Z. Karoly, J. Szepvolgyi, W. Kaszuwara, O. Łabędź, M. Bystrzejewski, Influence of ferrite stabilizing elements and Co on structure and magnetic properties of carbon-encapsulated iron nanoparticles synthesized in thermal plasma jet, Journal of Alloys and Compounds, Volume 619, 15 January 2015
  • Fei Liu, Yehua Jiang, Han Xiao, Jun Tan, Study on fragmentation and dissolution behavior of carbide in a hot-rolled hypereutectic high chromium cast iron, Journal of Alloys and Compounds, Volume 618, 5 January 2015
  • J. O’Flynn, S.F. Corbin, The influence of iron powder size on pore formation, densification and homogenization during blended elemental sintering of Ti–2.5Fe, Journal of Alloys and Compounds, Volume 618, 5 January 2015
  • V.S. Rudnev, M.V. Adigamova, I.V. Lukiyanchuk, I.A. Tkachenko, V.P. Morozova, Structure and magnetic characteristics of iron-modified titania layers on titanium, Journal of Alloys and Compounds, Volume 618, 5 January 2015
  • L. Yang, F. Gao, R.J. Kurtz, X.T. Zu, Atomistic simulations of helium clustering and grain boundary reconstruction in alpha-iron, Acta Materialia, Volume 82, 1 January 2015
  • Jin Gi Hong, Yongsheng Chen, Evaluation of electrochemical properties and reverse electrodialysis performance for porous cation exchange membranes with sulfate-functionalized iron oxide, Journal of Membrane Science, Volume 473, 1 January 2015
  • Q.C. Fan, X.Q. Jiang, Z.H. Zhou, W. Ji, H.Q. Cao, Constitutive relationship and hot deformation behavior of Armco-type pure iron for a wide range of temperature, Materials & Design, Volume 65, January 2015
  • Uğur Çavdar, Bekir Sadık Ünlü, Ahmet Murat Pinar, Enver Atik, Mechanical properties of heat treated iron based compacts, Materials & Design, Volume 65, January 2015
  • Adrian H.A. Lutey, Alessandro Fortunato, Alessandro Ascari, Simone Carmignato, Claudio Leone, Laser cutting of lithium iron phosphate battery electrodes: Characterization of process efficiency and quality, Optics & Laser Technology, Volume 65, January 2015

Iron Isotopes

Iron has 4 stable isotopes: 54Fe (5.845%), 56Fe (91.754%)57, Fe (2.119%) and 58Fe (0.282%).

Nuclide Symbol Isotopic Mass Half-Life Nuclear Spin
54Fe 53.9396105 Observationally Stable 0+
56Fe 55.9349375 Stable 0+
57Fe 56.9353940 Stable 1/2-
58Fe 57.9332756 Stable 0+