Product Description

Magnesium Fluoride, MgF2 crystal evaporation material, 

Purity:99.95%

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

Spec.:

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

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 °C , Boiling point 2260 °C 

Uses:

Optics: 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 Structure	Tetragonal
crystal orientation	<110>, <100>
Solubility at 18°C	0.0076g (per 100g water)
Lattice Constant	a=4.621; c=3.053
Dielectric Constant	105 ~107 Hz 5.45
Density	3.18g/cm3
Mohs Hardness	6
Melting Point	1255°C
Boiling Point	2239°C
MoleMolecular Weight	62.32
Special Heat	920 J/(kg K)
Hardness (Knoop)	415,576 kg/mm2
Transparency Range	0.12 ~ 8.5μm
Thermal Conductivity	3.14W/m·K
Elastic Coefficient	C11=140, C12=89, C44=57, C13=63, C66=96
Fluorescence	weak yellow upon excitation at 590 nm
Applications	IR, UV , DUV and VUV

Index of Refraction

Wavelength (nm)	no	ne	Wavelength (nm)	no	ne
178	1.43975	1.45365	656	1.37661	1.38835
436	1.38203	1.39402	1000	1.37964	1.38521
488	1.38016	1.39206	2000	1.36800	1.37922
546	1.37855	1.39039	3000	1.36000	1.37060
588	1.37770	1.38960	5000	1.33020	1.33930

 We also supply below material:

 

Material Name	Formula	Purity	Form
Aluminum Fluoride	AlF3	99.9%	Ceramic, Crystal
Magnesium Fluoride	MgF2	99.99%	Crystal
Barium Fluoride	BaF2	99.99%	Ceramic, Crystal
Lithium Fluoride	LiF	99.99%	Crystal
Sodium Fluoride	NaF	99.9%	Ceramic, Crystal
Strontium Fluoride	SrF2	99.9%	Ceramic

 

 

 

Material Name	Formula	Purity	Form
Aluminum Fluoride	AlF3	99.9%	Ceramic, Crystal
Magnesium Fluoride	MgF2	99.99%	Crystal
Barium Fluoride	BaF2	99.99%	Ceramic, Crystal
Lithium Fluoride	LiF	99.99%	Crystal
Sodium Fluoride	NaF	99.9%	Ceramic, Crystal
Strontium Fluoride	SrF2	99.9%	Ceramic

 

 

 

specification︰ Shape: shots,pellets,pieces,granules,rods,tablets
Spec.:
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

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