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Co   -   Cobalt (27/58.9332)

Material List
  • Naturally occurring isotopes: 59
  • Density: 8.71 (294.15K) g/cm3
  • Melting point: 1495 oC
  • Boiling point: 2870 oC
  • Latent heat of fusion: 258.6 J/g
  • Specific heat: 4.21 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: 1.38E-05 cm/cm/K (at room temp.)
  • Thermal conductivity: 1.00E+00 W/cm/K (at room temp.)
  • Electrical resistivity: 6.24E-06 hm-cm (at room temp.)
  • lonization potential (1st): 7.86 eV
  • Electronic work function Φ: 5
  • Oxidation potentials: Co → Co2+ + 2e = 0.277 V
  • Chemical valence: 2 3 4
  • Electrochemical equivalents: 1.0994 g/amp-hr
  • lonic radius: 0.745 angstrom
  • Valence electron potential: 38.7 -eV
  • Principal quantum number: 4
  • Principal electron shells: K L M N
  • Electronic configuration: 1s2 2s2 2p6 3s2 3p6 3d7 4s2
  • Valence electrons: 3d7 4s2
  • Crystal form: HCP
  • Half life:
  • Cross section σ: 37.5 ± 0.2 barns
  • Vapor pressure: 1.75E+02 Pa (at melting point)