China Lif Granule Purity>99.99% D3-6mm for Vapor Coating

Lithium Fluoride (LiF) crystal is used as window, lens for the 105nm to 6μm. And also can be used as the optical element in X-ray diffraction devices.

LiF pieces usually size is 3-6mm, and fewer on 1-3mm;

Optical Properties

Transmission Range

105 nm to 6 μm

Transmittance

>90% at 300 nm to 4.5 μm

Refractive Index

1.3733at 2.5 μm;

1.6240 at 121 nm

Reflection Loss

4.4% at 4 μm (both surfaces)

Physical Properties

Density

2.64 g/cm3

Melting Point

845ºC

Thermal Conductivity

11.3 Wm-1K-1 at 314K

Thermal Expansion

37 x 10-6 /ºC

Mohs Hardness

113 with 600g indenter (kg/mm2)

Specific Heat Capacity

1562 J/(kg.k)

Dielectric Constant

9.0 at 100 Hz

Youngs Modulus (E)

64.79 GPa

Shear Modulus (G)

55.14 GPa

Bulk Modulus (K)

62.03 GPa

Rupture Modulus

10.8 MPa

Elastic Coefficient

C11=112; C12=45.6; C44=63.2

Chemical Properties

Solubility

0.27 g/ 100g water at 18ºC

Molecular Weight

25.94

Structure

Cubic Crystal

Cleavage Plane

(100)