| Formula | Si | ||||||||||||
| Growth method | Czochalski technique | ||||||||||||
| Max. sizes, (mm) | Ø150 | ||||||||||||
| Transmission range, (µm) (Thickness 2 mm) | 1.2 – 15.0 | ||||||||||||
| Structure | Cubic | ||||||||||||
| Density (g/cm3) | 2.329 | ||||||||||||
| Melting point (°C) | 1410 | ||||||||||||
| Hardness (Mohs) | 7 | ||||||||||||
| Thermal expansion coefficient (10-6/K) | 2.3 | ||||||||||||
| Thermal conductivity (W m-1 K-1) | 147 | ||||||||||||
| Specific heat capacity (J kg-1K-1) | |||||||||||||
| Solubility in water (g/100 cm3) | 0.005 | ||||||||||||
| Solubility in acids | Soluble | ||||||||||||
| Solubility in organic solvents | Insoluble | ||||||||||||
| Wavelength (µm) Refractive index |
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| Absorption coefficient (cm-1) | 0.01 at 5 µm |
