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Zr   -   Zirconium (40/91.22)

Material List
  • Naturally occurring isotopes: 90 94 92 91 96
  • Density: 6.506 (293.15K) g/cm3
  • Melting point: 1852 ± 2 oC
  • Boiling point: 4377 oC
  • Latent heat of fusion: 251.2 J/g
  • Specific heat: 0.278 J/g/K (at room temp.)
  • Coefficient of lineal thermal expansion: 5.85E-06 cm/cm/K (at room temp.)
  • Thermal conductivity: 2.27E-01 W/cm/K (at room temp.)
  • Electrical resistivity: 4.00E-05 hm-cm (at room temp.)
  • lonization potential (1st): 6.84 eV
  • Electronic work function Φ: 4.05
  • Oxidation potentials: Zr → Zr4+ + 4e = 1.529 V
  • Chemical valence: 1 2 3 4
  • Electrochemical equivalents: 0.8509 g/amp-hr
  • lonic radius: 0.72 (Zr4+) angstrom
  • Valence electron potential: 80 -eV
  • Principal quantum number: 5
  • Principal electron shells: K L M N O
  • Electronic configuration: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d2 5s2
  • Valence electrons: 4d2 5s2
  • Crystal form: HCP
  • Half life:
  • Cross section σ: 0.182 ± 0.005 barns
  • Vapor pressure: 1.68E-03 Pa (at melting point)