|
|
|
Syngony
|
Cubic
|
|
Symmetry Class
|
m3m
|
|
Lattice Constants, Angstroms
|
a=6.292 c=a
|
|
Cleavability
|
(100), perfect
|
|
|
|
|
Refractive Index at ne
|
1.4930
|
|
Refractive Index at nF'-nC'
|
0.0112
|
|
Refractive Index at n10.6
|
1.4546
|
|
Refractive Index, n8.0-n12.5
|
0.0172
|
|
Thermal Coefficient of Refractive Index at l=3.39 microns, îÑ-1
for +/-60îÑ
|
(-3.28...-3.75)• 10-5
|
|
Transmission Range, microns (thickness 10ìì)
|
0.21¸21
|
|
Transmittance ti(l) vs. wavelength l
|
KCl Potassium Chloride
|
|
|
|
|
|
|
Internal Transmittance ti(l) vs.
wavelength l
|
|
l,ìêì
|
ti(l)
|
|
0.2
|
0.89
|
|
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
|
0.95
|
|
20.0
|
0.68
|
|
|
|
|
|
|
Refractive Index n vs.
wavelength l
|
|
l,ìêì
|
n(l)
|
|
0.2
|
1.7170
|
|
0.5
|
1.4968
|
|
1.0
|
1.4796
|
|
2.0
|
1.4751
|
|
3.0
|
1.4735
|
|
4.0
|
1.4720
|
|
5.0
|
1.4703
|
|
6.0
|
1.4683
|
|
7.0
|
1.4659
|
|
8.0
|
1.4632
|
|
9.0
|
1.4601
|
|
10.0
|
1.4566
|
|
11.0
|
1.4527
|
|
12.0
|
1.4463
|
|
12.5
|
1.4460
|
|
15.0
|
1.4325
|
|
20.0
|
1.3947
|
|
30.0
|
1.2626
|
|
|
|
|
|
Thermal Linear Expansion at, îÑ-1 for +/-60îÑ
|
(34.1¸38.3)• 10-6
|
|
Thermal Conductivity, W/(m • îÑ) at 42 îÑ
|
6.53
|
|
Specific Heat Capacity, J/(kg • îÑ) at 23 îÑ
|
695
|
|
Melting Point, îÑ
|
776
|
|
|
|
|
Density, g/cm3 at 20 îÑ
|
1.98
|
|
Mohs Hardness
|
2
|
|
Vickers Microhardness , Pa
|
15• 107
|
|
Constants of Elastic Compliance, Pa-1
|
S11
|
26.21• 10-12
|
|
S12
|
-3.47• 10-12
|
|
S44
|
161.98• 10-12
|
|
Poisson Ratio
|
0.134
|
|
Young Modulus (Å), Pa
|
<100>
|
3.82• 1010
|
|
<100>
|
1.68• 1010
|
|
Shear Modulus (G), Pa
|
(100)
|
1.08• 1010
|
|
(100)
|
0.63• 1010
|
|
|
|
|
Solubility KCl
|
|
in water at 20 îÑ g/100cm3
|
in acids
|
|
34.7
|
-
|
|
"Opto-Technological Laboratory" produces lenses, windows, prisms, wedges and others optical components according to customers’ specifications and drawings out of crystals potassium chloride ( KCl ) . |
