Germanium

Physical properties

Physical state @ 20°C: Solid [5]
Color: Gray [5]
Odor: Odorless [5]
Molecular weight (g/mol): 72.61(2) [3]
Melting point (°C): List of melting points 945 [3]
Boiling point (°C): List of boiling points 2850 [3]
Density (g/cm3): Density list 5.323 (alpha form) [3]
6.71 (beta form) [3]
Molar volume (cm3): 13.60 (20 °C) [4]
Elastic properties:
Young's modulus (GPa):
Rigidity modulus (GPa):
Bulk modulus (GPa):
Poisson ratio:
80 [4]
30 [4]
80 [4]
0.34 [4]
Hardness:
Mineral hardness:
1.5-2.5 [4]
Solubility: Water: Insoluble (20 °C) [5]