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TYR since from 2004 year supplying rare earth material, sputtering target and vacuum evaporation thin film coating material
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Magnesium fluoride, MgF2 crystal granules optics coating material CAS 7783-40-6

Magnesium fluoride, MgF2 crystal granules optics coating material CAS 7783-40-6

Brand Name : TYR
Model Number : MgF2-Crystal
Place of Origin : CHINA
MOQ : 1 kg
Price : USD$100/KG
Payment Terms : T/T, Western Union
Supply Ability : 500 kgs per month
Delivery Time : 10-15 days
Packaging Details : vacuum packing per kgs
Material : MgF2
Color : crystal white
Purity : 99.99%
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High Pure Fluoride Evaporation (deposition) Material

Shape: shots,pellets,pieces,granules,rods,tablets


Tablets: 8mm dia. X 5mm L, 10mm dia. X 5mm L, 20mm dia. X 8mm L e.t.c

Pieces, Granules: 1-2.5mm, 3-6mm, 3-8mm, 1-3mm, 3-12mm e.t.c

Material NameFormulaPurityForm
Aluminum FluorideAlF399.9%Ceramic, Crystal
Yttrium FluorideYbF399.99%Ceramic
Lanthanum FluorideLaF399.99%Ceramic
Yttrium FluorideYF399.9%Ceramic
Cerium FluorideCeF399.99%Ceramic
Magnesium FluorideMgF299.99%Crystal
Praseodymium FluoridePrF399.9%Ceramic
Barium FluorideBaF299.99%Ceramic, Crystal
Lithium FluorideLiF99.99%Crystal
Sodium FluorideNaF99.9%Ceramic, Crystal
Strontium FluorideSrF299.9%Ceramic
Lead FluoridePbF299.99%Ceramic, Crystal
Erbium FluorideErF399.9%Cerami

Evaporation Material:Pieces: 1-4mm, 1-6mm, 3-6mm, 3-12mm e.t.c, Tablets: 8-9mm dia. X 4-5mm thick, 10mm dia. X 10mm thick e.t.c

Magnesium fluoride, MgF2 is a white crystalline salt and is transparent over a wide range of wavelengths, with commercial uses in optics that are also used in space telescopes,

Molar mass 62.3018 g/mol , Appearance white tetragonal crystals , Density 3.148 g/cm3 , Melting point 1263 oC , Boiling point 2260 oC



Magnesium fluoride is transparent over an extremely wide range of wavelengths. Windows, lenses, and prisms made of this material can be used over the entire range of wavelengths from 0.120 μm (vacuum ultraviolet) to 8.0 μm (infrared). However, with lithium fluoride it is one of the two materials that will transmit in the vacuum ultraviolet range at 121 nm (Lyman alpha) and this is where it finds its application. Lower grade MgF2 is sometimes used in the infrared but here it is inferior to calcium fluoride. MgF2 is tough and works and polishes well, but it is slightly birefringent and should be cut with the optic axis perpendicular to the plane of the window or lens.

Due to its having a suitable refractive index of 1.37, thin layers of MgF2 are very commonly used on the surfaces of optical elements as inexpensive anti-reflective coatings.

The Verdet constant of (MgF2) at 632.8 nm is 0.00810 arcmin G−1 cm−1.

Physical Properties

Crystal StructureTetragonal
crystal orientation<110> <100>
Solubility at 18 oC0.0076g (per 100g water)
Lattice Constanta=4.621; c=3.053
Dielectric Constant105 ~107 Hz 5.45
Mohs Hardness6
Melting Point1255 oC
Boiling Point2239 oC
MoleMolecular Weight62.32
Special Heat920 J/(kg K)
Hardness (Knoop)415,576 kg/mm2
Transparency Range0.12 ~ 8.5μm
Thermal Conductivity3.14W/m·K
Elastic CoefficientC11=140, C12=89, C44=57, C13=63, C66=96
Fluorescenceweak yellow upon excitation at 590 nm
ApplicationsIR, UV , DUV and VUV

Index of Refraction

Wavelength (nm)noneWavelength (nm)none

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