
Magnesium Fluoride (MgF2, CAS 7783-40-6), 99.9–99.99%, powder and evaporation granules, supplied wholesale by Zyntex. Low-index optical material for anti-reflection coatings, UV and IR optics and ceramics. CoA and SDS.
Magnesium fluoride (MgF2) is a white powder or crystal that is insoluble in water and melts at about 1,263°C. It has a low refractive index (about 1.38) and is transparent from the deep ultraviolet to the mid-infrared.
In addition, optical coating producers evaporate it as the classic single-layer anti-reflection coating on lenses and as a low-index layer in multilayer coatings. Similarly, optics producers use MgF2 crystals for UV windows and lenses, and ceramic and metallurgy users use it as a flux and in specialty ceramics.
Notably, related optical materials in our range include Yttrium Fluoride, Calcium Fluoride and Hafnium Oxide.
Typical uses include, for example:
🔬 Anti-Reflection Coatings
Classic lens coating.
💡 UV Optics
Windows and lenses.
🌡️ IR Optics
Infrared components.
🏺 Ceramics
Flux and specialty ceramics.
| Parameter | Standard Value |
|---|---|
| Product Name | Magnesium Fluoride (MgF2) |
| CAS Number | 7783-40-6 |
| Molecular Formula / Weight | MgF2 / 62.30 g/mol |
| Purity | 99.9% – 99.99% |
| Forms | Powder and evaporation granules |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Harmful if swallowed or inhaled as dust. Avoid dust formation and also wear dust protection and eye protection. Store in tightly closed containers in a dry place. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Why is MgF2 used on lenses?
Its low refractive index makes it ideal for single-layer anti-reflection coatings.
Which forms do you supply?
Powder and evaporation granules in 3N to 4N purity.
How can I get a price and documents?
We supply flexible quantities, from small orders to large volumes, so you do not need to meet the high minimum orders of large producers. Please contact us with your required volume, and we will send a quotation together with the CoA and SDS.