Refractive
Indices |
|
|
|
|
706.5 |
1.64565 |
|
656.3 |
1.64878 |
|
643.8 |
1.64967 |
|
632.8 |
1.65050 |
|
589.3 |
1.65429 |
|
587.6 |
1.65446 |
|
546.1 |
1.65907 |
|
486.1 |
1.66822 |
|
480.0 |
1.66939 |
|
435.8 |
1.67966 |
|
404.7 |
1.68965 |
|
365.0 |
1.70788 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.6567173 |
|
-9.1117044 10 |
|
2.581519710 |
|
1.120356410 |
|
-4.106681710 |
|
6.924201110 |
|
Relative Partial Dispersions
|
|
0.2921 |
|
0.2428 |
|
0.2371 |
|
0.2337 |
|
0.5883 |
|
0.5206 |
|
|
|
-0.0007 |
|
-0.0001 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
2 |
|
1 |
|
2 |
|
ThermalProperties |
.gif)
|
448 |
.gif)
|
518 |
|
393 |
|
436 |
|
80 |
|
86 |
|
Mechanical
Properties |
|
379 |
|
0.75 |
|
5662 |
|
2313 |
|
0.224 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration Code |
|
38/34 |
|
|
|
Other Properties |
|
3.91 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.948 |
0.898 |
2200 |
0.957 |
0.916 |
2000 |
0.982 |
0.964 |
1800 |
0.990 |
0.980 |
1600 |
0.998 |
0.997 |
1400 |
0.999 |
0.998 |
1200 |
0.999 |
0.998 |
1060 |
0.999 |
0.998 |
1000 |
0.999 |
0.998 |
950 |
0.999 |
0.998 |
900 |
0.999 |
0.998 |
850 |
0.999 |
0.998 |
800 |
0.998 |
0.997 |
700 |
0.998 |
0.996 |
650 |
0.997 |
0.995 |
600 |
0.997 |
0.995 |
550 |
0.997 |
0.995 |
500 |
0.996 |
0.992 |
480 |
0.995 |
0.990 |
460 |
0.993 |
0.987 |
440 |
0.991 |
0.983 |
420 |
0.988 |
0.976 |
400 |
0.979 |
0.958 |
390 |
0.966 |
0.934 |
380 |
0.947 |
0.897 |
370 |
0.918 |
0.843 |
360 |
0.85 |
0.72 |
350 |
0.71 |
0.51 |
340 |
0.42 |
0.18 |
330 |
0.10 |
0.01 |
320 |
|
|
310 |
|
|
300 |
|
|
290 |
|
|
280 |
|
|
|
1.65446 
33.65
0.019447 
1.65907 
33.41
0.019728