Lanthanum - ₅₇La: physical properties

Density properties

• Density of solid: 6146 kg m^‑3
• Molar volume: 22.39 cm³

Elastic properties

• Young's modulus: 37 GPa
• Rigidity modulus: 14 GPa
• Bulk modulus: 28 GPa
• Poisson's ratio: 0.28 (no units)

Hardnesses

• Mineral hardness: 2.5 (no units)
• Brinell hardness: 363 MN m^-2
• Vickers hardness: 491 MN m^-2

Electrical properties

• Electrical resistivity: 61.5 × 10^‑8 Ω m; or mΩ cm

Heat and conduction

• Thermal conductivity: 13 W m^‑1 K^‑1
• Coefficient of linear thermal expansion: 12.1 × 10^‑6 K^‑1

Optical properties

• Reflectivity: (no data) %
• Refractive index: (no data) (no units)

Acoustic properties

• Velocity of sound: 2475 m s^‑1