Crystallographic
|
Syngony |
Cubic |
|
Symmetry Class |
m3m |
|
Lattice Constants |
a = 6.598 Å c = a |
|
Cleavability |
(100), perfect |
Optical
|
Refractive Index at ne |
1.5639 |
|
Refractive Index at nF' - nC' |
0.0617 |
|
Refractive Index at n10.6 |
1.5251 |
|
Refractive Index at n8.0 - n12.5 |
0.0099 |
|
Thermal Coefficient of Refractive Index at 3.39 microns for±60 ℃ |
(-3.95) ... (-4.29) x 10-5 |
|
Transmission Range, microns |
0.21 - 28 |
Thermal
|
Thermal Linear Expansion, ℃-1 for ±60 ℃ |
(36.6 ... 39.6) x 10-6 |
|
Thermal Conductivity, W/(m * ℃) at 46 ℃ |
4.81 |
|
Specific Heat Capacity, J/(kg * ℃) |
0.4522 x 103 |
|
Melting Point, ℃ |
728 |
Mechanical
|
Density, g/cm3 at 20 ℃ |
2.75 |
|
Mohs Hardness |
1.5 |
|
Vickers Microhardness, Pa |
10 x 107 |
|
Constants of Elastic Compliance, Pa-1 |
S11 = 30.29 x 10-12 S12 = -4.18 x 10-12 S44 = 194.92 x 10-12 |
|
Young Modulus (E), Pa |
|
|
in <100> direction |
3.30 x 1010 |
|
in <110> direction |
1.38 x 1010 |
|
Shear Modulus (G), Pa |
|
|
in <100> direction |
0.90 x 1010 |
|
in <110> direction |
0.51 x 1010 |
|
Poisson Ratio |
0.138 |
Chemical
|
Molecular Weight |
119.01 |
|
Solubility |
|
|
in water, gram/100 cm3 |
53.48 |
Ref. Index vs. Wavelength λ
|
Wavelength, Microns |
Refractive Index |
|
0.2 |
2.0995 |
|
0.5 |
1.5700 |
|
1.0 |
1.5444 |
|
2.0 |
1.5383 |
|
3.0 |
1.5357 |
|
4.0 |
1.5346 |
|
5.0 |
1.5334 |
|
6.0 |
1.5319 |
|
7.0 |
1.5303 |
|
8.0 |
1.5285 |
|
9.0 |
1.5265 |
|
10.0 |
1.5242 |
|
11.0 |
1.5217 |
|
12.0 |
1.5204 |
|
15.0 |
1.5127 |
|
20.0 |
1.4924 |
|
30.0 |
1.4253 |
Internal Transmittance τ i (λ) vs. Wavelength λ
|
Wavelength, Microns |
Internal Transmittance |
|
0.2 |
0.48 |
|
0.5 |
0.98 |
|
1.0 |
0.98 |
|
3.0 |
0.98 |
|
5.0 |
0.98 |
|
6.0 |
0.98 |
|
7.0 |
0.98 |
|
8.0 |
0.98 |
|
9.0 |
0.98 |
|
10.0 |
0.98 |
|
12.0 |
0.98 |
|
15.0 |
0.98 |
|
20.0 |
0.92 |
|
15.0 |
0.98 |
|
30.0 |
0.26 |
Custom sizes and specifications are available on request.
