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Magnesium Fluoride - MgF2

lenses, windows, mirrors, filters and prisms

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TA very durable material resistant to mechanical and thermal shock and used for prisms, windows and lenses from the vacuum ultraviolet to the infrared region of 7.5 microns. MgF² is a birefringent material making it effective as a polarising element in the ultraviolet region.

Transmission Range	0.11 - 7.5 µ
Crystal Structure	Tin oxide
Cleavage Plane	Parellel to A or C axis
Colour	colourless
Density	3.1766 (18°)
Melting Point (°)	1255
Reflection Loss	4.8% (visible) for 2 surfaces
Solubility index	0.0076gm/100gm water / 18°C
Hardness (Knoop)	415kg/mm²
Thermal Conductivity (cal/cm sec°C)	0.3W (m K) at (13°C)
Thermal Expansion coefficient (/°C)	18.8x10^-6(Parellel to C axis) 1.31x10^-6(Vertical to C axis)

Whilst every effort has been made to verify the data provided, no responsibility can be accepted for its accuracy