Refractive
Indices |
|
|
|
|
706.5 |
1.72831 |
|
656.3 |
1.73243 |
|
643.8 |
1.73361 |
|
632.8 |
1.73472 |
|
589.3 |
1.73977 |
|
587.6 |
1.74000 |
|
546.1 |
1.74619 |
|
486.1 |
1.75863 |
|
480.0 |
1.76023 |
|
435.8 |
1.77439 |
|
404.7 |
1.78837 |
|
365.0 |
1.81447 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.9160432 |
|
-1.0435647 10 |
|
3.390787210 |
|
2.272880210 |
|
-1.356321310 |
|
1.652759210 |
|
Relative Partial Dispersions
|
|
0.2889 |
|
0.2401 |
|
0.2363 |
|
0.2325 |
|
0.6015 |
|
0.5319 |
|
|
|
0.0007 |
|
0.0039 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
2 |
|
1 |
|
2 |
|
ThermalProperties |
.gif)
|
430 |
.gif)
|
460 |
|
|
|
|
|
|
|
|
|
Mechanical
Properties |
|
390 |
|
0.50 |
|
5440 |
|
2200 |
|
0.236 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration Code |
|
41/35 |
|
|
|
Other Properties |
|
4.65 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.950 |
0.903 |
2200 |
0.965 |
0.931 |
2000 |
0.980 |
0.960 |
1800 |
0.986 |
0.972 |
1600 |
0.992 |
0.984 |
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 |
0.998 |
700 |
0.999 |
0.998 |
650 |
0.999 |
0.998 |
600 |
0.999 |
0.998 |
550 |
0.999 |
0.998 |
500 |
0.998 |
0.997 |
480 |
0.998 |
0.997 |
460 |
0.997 |
0.994 |
440 |
0.994 |
0.988 |
420 |
0.984 |
0.969 |
400 |
0.956 |
0.914 |
390 |
0.92 |
0.85 |
380 |
0.86 |
0.74 |
370 |
0.73 |
0.54 |
360 |
0.48 |
0.23 |
350 |
0.15 |
0.02 |
340 |
|
|
330 |
|
|
320 |
|
|
310 |
|
|
300 |
|
|
290 |
|
|
280 |
|
|
|
1.74000 
28.24
0.026200
1.74619 
28.03
0.026623