Resource
LiF (Lithium Fluoride)
Physical and optical properties
Transmission Range : |
0.12 to 6 μm |
Refractive Index : |
1.392 at 0.6 μm (1) |
Reflection Loss : |
5.2% at 0.6 μm (2 Surfaces) |
Absorption Coefficient : |
5.9 x 10-3 cm-1 at 4.3 μm @ 300K (5) |
Reststrahlen Peak : |
25 μm |
dn/dT : |
-16 x 10-6 at 1.15 μm |
dn/dμ = 0 : |
1.3 μm |
Density : |
2.639 g/cc |
Melting Point : |
848 °C (6) |
Thermal Conductivity : |
4.01 W m-1 K-1 at 314 K (2) |
Thermal Expansion : |
37 x 10-6 K-1 at 283 K (2) |
Hardness : |
Knoop 102 with 600g indenter (2) |
Specific Heat Capacity : |
1562 J Kg-1 K-1 |
Dielectric Constant : |
0.1 |
Youngs Modulus (E) : |
64.97 GPa (2) |
Shear Modulus (G) : |
55.14 GPa (2) |
Bulk Modulus (K) : |
62.03 GPa (2) |
Elastic Coefficients : |
C11=112; C12=46; C44=63.5 (3) |
Apparent Elastic Limit : |
11.2 MPa (1620 psi) (4) |
Poisson Ratio : |
0.326 (calculated) |
Solubility : |
0.27g / 100g water at 20 °C |
Molecular Weight : |
25.94 |
Class/Structure : |
Cubic FCC, NaCl, Fm3m, (100) cleavage |
µm
|
No
|
µm
|
No
|
µm
|
No
|
0.106
|
1.9130
|
0.108
|
1.8330
|
0.110
|
1.7770
|
0.121
|
1.6240
|
0.130
|
1.5690
|
0.140
|
1.5300
|
0.150
|
1.5030
|
0.160
|
1.4840
|
0.170
|
1.4690
|
0.180
|
1.4850
|
0.190
|
1.4455
|
0.200
|
1.4391
|
0.220
|
1.4291
|
0.250
|
1.4189
|
0.260
|
1.4164
|
0.270
|
1.4141
|
0.280
|
1.4121
|
0.290
|
1.4103
|
0.300
|
1.4087
|
0.310
|
1.4073
|
0.320
|
1.4060
|
0.330
|
1.4048
|
0.340
|
1.4037
|
0.350
|
1.4028
|
0.360
|
1.4019
|
0.400
|
1.3989
|
0.500
|
1.3943
|
0.600
|
1.3918
|
0.700
|
1.3902
|
0.800
|
1.3890
|
0.900
|
1.3880
|
1.000
|
1.3871
|
1.500
|
1.3832
|
2.000
|
1.3788
|
2.500
|
1.37327
|
3.000
|
1.3666
|
3.500
|
1.3587
|
4.000
|
1.3494
|
4.500
|
1.3388
|
5.000
|
1.3266
|
5.100
|
1.3240
|
5.200
|
1.3213
|
5.300
|
1.3186
|
5.400
|
1.3158
|
5.500
|
1.3129
|
5.600
|
1.3099
|
5.700
|
1.3069
|
5.800
|
1.3038
|
5.900
|
1.3007
|
6.000
|
1.2975
|
|
|
Product Notes