Magnesium - ₁₂Mg: physical properties

Density properties

• Density of solid: 1738 kg m^‑3
• Molar volume: 14.00 cm³

Elastic properties

• Young's modulus: 45 GPa
• Rigidity modulus: 17 GPa
• Bulk modulus: 45 GPa
• Poisson's ratio: 0.29 (no units)

Hardnesses

• Mineral hardness: 2.5 (no units)
• Brinell hardness: 260 MN m^-2
• Vickers hardness: (no data) MN m^-2

Electrical properties

• Electrical resistivity: 4.4 × 10^‑8 Ω m; or mΩ cm

Heat and conduction

• Thermal conductivity: 160 W m^‑1 K^‑1
• Coefficient of linear thermal expansion: 8.2 × 10^‑6 K^‑1

Optical properties

• Reflectivity: 74 %
• Refractive index: (no data) (no units)

Acoustic properties

• Velocity of sound: 4602 m s^‑1