Crystallographic properties |
Syngony |
Cubic |
Crystal Form |
Poly or Single Crystal |
Lattice Constant |
5.66 |
Cleavability |
<111>, non-perfect |
Molecular Weight |
72.6 |
Physical properties |
Density, at 20 °C |
5.33 |
Hardness, Mohs |
6.3 |
Dielectric Constant for 9.37 × 109 Hz at 300 K |
16.6 |
Melting |
937 |
Thermal Conductivity, W/m·K at at 293 K |
59 |
Thermal Expansion, 1/K at 298 K |
6.1 × 10-6 |
Specific Heat Capacity, J/(kgK) at 273-373 K |
0.074 |
Bandgap, eV |
0.67 |
Knoop Hardness, kg/mm2 |
800 |
Youngs Modulus, Gpa |
102.66 |
Shear Modulus, GPa |
67.04 |
Bulk Modulus, GPa |
77.86 |
Debye Temperature, K |
370 |
Poissons Ratio |
0.278 |
Elastic Coefficient |
C11=129, C12=48.3, C44=67.1 |
Apparent Elastic Limit |
89.6 MPa (13000psi) |
Chemical properties |
Solubility in water |
None |
Solubility in acids |
Soluble |
Molecular Weight |
72.59 |