Refractive
Indices |
|
|
|
|
706.5 |
1.61547 |
|
656.3 |
1.61727 |
|
643.8 |
1.61777 |
|
632.8 |
1.61824 |
|
589.3 |
1.62032 |
|
587.6 |
1.62041 |
|
546.1 |
1.62286 |
|
486.1 |
1.62755 |
|
480.0 |
1.62813 |
|
435.8 |
1.63310 |
|
404.7 |
1.63768 |
|
365.0 |
1.64550 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.5859898 |
|
-1.1940432 10 |
|
1.399550210 |
|
4.897450210 |
|
-3.912071710 |
|
2.261191510 |
|
Relative Partial Dispersions
|
|
0.3054 |
|
0.2547 |
|
0.2386 |
|
0.2367 |
|
0.5393 |
|
0.4789 |
|
|
|
-0.0007 |
|
-0.0036 |
|
Chemical
Properties |
|
Grade |
.gif)
|
1 |
.gif)
|
3 |
|
2 |
|
4 |
|
ThermalProperties |
.gif)
|
620 |
.gif)
|
663 |
|
|
|
|
|
67 |
|
75 |
|
Mechanical
Properties |
|
575 |
|
0.77 |
|
8830 |
|
3480 |
|
0.269 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration
Code |
|
36/30 |
|
|
|
Other
Properties |
|
3.56 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.82 |
0.67 |
2200 |
0.90 |
0.81 |
2000 |
0.970 |
0.941 |
1800 |
0.981 |
0.962 |
1600 |
0.992 |
0.984 |
1400 |
0.997 |
0.994 |
1200 |
0.999 |
0.998 |
1060 |
0.999 |
0.999 |
1000 |
0.999 |
0.999 |
950 |
0.999 |
0.999 |
900 |
0.999 |
0.999 |
850 |
0.999 |
0.999 |
800 |
0.999 |
0.999 |
700 |
0.999 |
0.997 |
650 |
0.999 |
0.997 |
600 |
0.999 |
0.997 |
550 |
0.999 |
0.997 |
500 |
0.999 |
0.997 |
480 |
0.999 |
0.996 |
460 |
0.997 |
0.994 |
440 |
0.997 |
0.994 |
420 |
0.996 |
0.993 |
400 |
0.994 |
0.987 |
390 |
0.991 |
0.982 |
380 |
0.986 |
0.973 |
370 |
0.975 |
0.952 |
360 |
0.956 |
0.914 |
350 |
0.920 |
0.847 |
340 |
0.86 |
0.74 |
330 |
0.77 |
0.59 |
320 |
0.63 |
0.40 |
310 |
0.47 |
0.22 |
300 |
0.29 |
0.08 |
290 |
0.13 |
0.02 |
280 |
0.03 |
|
|
1.62041 
60.34
0.010281 
1.62286 
60.10
0.010363