Refractive
Indices |
|
|
|
|
706.5 |
1.66372 |
|
656.3 |
1.66661 |
|
643.8 |
1.66756 |
|
632.8 |
1.66846 |
|
589.3 |
1.67252 |
|
587.6 |
1.67270 |
|
546.1 |
1.67765 |
|
486.1 |
1.68752 |
|
480.0 |
1.68878 |
|
435.8 |
1.69989 |
|
404.7 |
1.71074 |
|
365.0 |
1.73064 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.7098957 |
|
-8.6927966 10 |
|
2.812709910 |
|
1.173330510 |
|
-3.264112110 |
|
7.236439110 |
|
Relative Partial Dispersions
|
|
0.2914 |
|
0.2423 |
|
0.2367 |
|
0.2332 |
|
0.5917 |
|
0.5235 |
|
|
|
0.0000 |
|
0.0008 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
3 |
|
1 |
|
2 |
|
ThermalProperties |
.gif)
|
430 |
.gif)
|
480 |
|
414 |
|
434 |
|
88 |
|
|
|
Mechanical
Properties |
|
400 |
|
0.56 |
|
5548 |
|
2256 |
|
0.229 |
|
Stress-Optical
Coefficient |
|
2.34 |
|
Coloration Code |
|
38/34 |
|
|
|
Other Properties |
|
4.08 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.963 |
0.928 |
2200 |
0.970 |
0.941 |
2000 |
0.979 |
0.958 |
1800 |
0.990 |
0.980 |
1600 |
0.996 |
0.992 |
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 |
0.999 |
0.999 |
700 |
0.999 |
0.999 |
650 |
0.999 |
0.999 |
600 |
0.999 |
0.999 |
550 |
0.999 |
0.997 |
500 |
0.999 |
0.996 |
480 |
0.998 |
0.996 |
460 |
0.997 |
0.994 |
440 |
0.997 |
0.994 |
420 |
0.994 |
0.989 |
400 |
0.989 |
0.977 |
390 |
0.983 |
0.967 |
380 |
0.979 |
0.958 |
370 |
0.948 |
0.899 |
360 |
0.89 |
0.79 |
350 |
0.73 |
0.53 |
340 |
0.38 |
0.14 |
330 |
0.06 |
|
320 |
|
|
310 |
|
|
300 |
|
|
290 |
|
|
280 |
|
|
|
1.67270 
32.17
0.020909
1.67765 
31.93
0.021221