Refractive
Indices |
|
|
|
|
706.5 |
1.72280 |
|
656.3 |
1.72510 |
|
643.8 |
1.72575 |
|
632.8 |
1.72635 |
|
589.3 |
1.72904 |
|
587.6 |
1.72916 |
|
546.1 |
1.73234 |
|
486.1 |
1.73844 |
|
480.0 |
1.73920 |
|
435.8 |
1.74570 |
|
404.7 |
1.75174 |
|
365.0 |
1.76203 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.9342390 |
|
-1.5232638 10 |
|
1.968169010 |
|
5.234319710 |
|
-1.985528810 |
|
1.178747210 |
|
Relative Partial Dispersions
|
|
0.3040 |
|
0.2535 |
|
0.2385 |
|
0.2364 |
|
0.5448 |
|
0.4833 |
|
|
|
0.0023 |
|
0.0082 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
3 |
|
1 |
|
3 |
|
ThermalProperties |
.gif)
|
680 |
.gif)
|
705 |
|
638 |
|
662 |
|
60 |
|
70 |
|
Mechanical
Properties |
|
765 |
|
|
|
11761 |
|
4554 |
|
0.291 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration
Code |
|
37/29 |
|
|
|
Other
Properties |
|
4.02 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.84 |
0.70 |
2200 |
0.948 |
0.898 |
2000 |
0.981 |
0.962 |
1800 |
0.992 |
0.985 |
1600 |
0.998 |
0.996 |
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 |
0.998 |
0.997 |
650 |
0.998 |
0.997 |
600 |
0.997 |
0.995 |
550 |
0.997 |
0.995 |
500 |
0.997 |
0.994 |
480 |
0.997 |
0.994 |
460 |
0.995 |
0.991 |
440 |
0.994 |
0.988 |
420 |
0.992 |
0.984 |
400 |
0.988 |
0.977 |
390 |
0.984 |
0.969 |
380 |
0.983 |
0.966 |
370 |
0.966 |
0.933 |
360 |
0.95 |
0.90 |
350 |
0.91 |
0.83 |
340 |
0.86 |
0.74 |
330 |
0.78 |
0.61 |
320 |
0.69 |
0.47 |
310 |
0.57 |
0.33 |
300 |
0.48 |
0.23 |
290 |
0.39 |
0.15 |
280 |
0.26 |
0.07 |
|
1.72916 
54.68
0.013334 
1.73234 
54.45
0.013450