Magnesium Fluoride
MgF2 : Magnesium fluoride is white or crystalline in appearance very used in optics due to its distinctive transparency over a wide range of wavelengths.
Specifications
| Shape | Color | Purity | Package | Storage | ||
|---|---|---|---|---|---|---|
| Crystal | Granule | 1-3 mm; 3-5 mm Upon demand | Colorless Transparent | 99.99% | 1 Kg/Bag | Avoid exposure to sunlight & acid Keep dry |
| Sinter | Tablet | 20x12 mm Upon demand | White | |||
Characteristics of magnesium fluoride
| CAS Number | Density (g/cm3) | Boiling point (Cº) | Melting point (Cº) | Refractive index at 550 (nm) | Transparency range (µm) | Evaporation source |
|---|---|---|---|---|---|---|
| 7783-40-6 | 3.18 | 2260 | 1266 | 1.38 | 0.1-10 | B(W, Ta, Mo) |
| Applications | Multi-layer coating; Decorative coating, Glasses coating, UV coating, AR coating | |||||
Evaporation technique
Magnesium fluoride can be thermally evaporated from a tungsten, tantalum or molybdenum boat source. It can also be deposited by electron beam using a crucible liner.