Iron, Fe

Iron is a chemical element with the symbol Fe (Latin: ferrum) and atomic number 26. Iron is a group 8 and period 4 element. Iron is a lustrous, silvery soft metal. It is one of the few ferromagnetic elements.

Iron and nickel are notable for being the final elements produced by stellar nucleosynthesis, and are therefore the heaviest elements which do not require a red giant or supernova for formation. Iron and nickel are therefore the most abundant metals in metallic meteorites and in the dense-metal cores of planets such as Earth. Iron and iron alloys are also the most common source of ferromagnetic materials in everyday use.

Technical Data
Symbol Fe Density (20°C)/gcm-3 7.874
Atomic number 26 Melting point / °C 1535
No. of naturally occurring isotopes 4 Boiling point / °C 2750
Atomic weight 55.847(+/-3) ΔHfus/kJmol-1 13.8
Electronic configuration [Ar]3d64s2 ΔHvap/kJmol-1 340(+/-13)
Metal radius(12-coordinate)/pm 126 ΔHf(monoatomic gas/kJmol-1 398(+/-17)
Ionic radius(4-coordinate)/pm VI 25 Electrical resistivity  
Ionic radius(6-coordinate)/pm IV 58.5 (20 °C)/μohm cm 9.71
Ionic radius(6-coordinale)/pm III 55(ls), 64.5(hs) Ionization energy/kJmol-1 I 759
Ionic radius(6-coordinatc)/pm 11 61(ls), 78(hs) Ionization energy/kJmol-1 II 1561
Electronegativity χ 1.8 Ionization encrgy'kJmol-1 III 2957
Evaporation Techniques
Temperature (oC) @Vap. Pressure Techniques Remarks
10-8 Torr 10-6 Torr 10-4 Torr Electron Beam Crucible Coil Boat
858 998 1180 Excellent Al2O3 Tungsten Tungsten Attacks Tunsgten. Films hard, smooth. Use gentle preheat to outgas.

Evaporation Material
I4-5000-M Ingot (Please ask for sizes)
I4-5002-M pellets 6mm diameter x 6mm long
I4-5003-M pieces 1-3mm
I4-5014-M pieces 3-20mm
I4-5015-M pellets 2-3mm diameter x 2-3mm long

The foils are available in either rectangular or circular shape. Please enter width and length or diameter of the required foil.

I4-3003-F 0.004" (0.1mm)
I4-3007-F 0.008" (0.2mm)
I4-10000-P -100 mesh
I4-10002-P -200 mesh
I4-10003-P -325 mesh
I4-2000-R 0.040" (1.0mm)
I4-2001-R 0.0625" (1.58mm)
I4-2002-R 0.125" (3.175mm)
I4-2003-R 0.196" (5mm)
I4-2008-R 0.250" (6.35mm)
I4-2004-R 0.500" (12.7mm)
I4-2005-R 0.625" (15.88mm)
I4-2006-R 0.750" (19.05mm)
I4-2007-R 1" (25.4mm)
I4-4002-S 0.020" (0.5mm)
I4-4003-S 0.030" (0.76mm)
I4-4004-S 0.040" (1mm)
I4-4006-S 0.060" (1.5mm)
I4-4008-S 0.125" (3.175mm)
I4-4009-S 0.250" (6.35mm)
I4-1000-W 0.005" (0.127mm)
I4-1003-W 0.008" (0.203mm)
I4-1007-W 0.020" (0.5mm)
I4-1009-W 0.040" (1.0mm)
I4-1010-W 0.050" (1.27mm)
I4-1011-W 0.060" (1.524mm)
I4-1012-W 0.070" (1.778mm)
I4-1013-W 0.080" (2.0mm)