Refractive
Indices |
|
|
|
|
706.5 |
1.70668 |
|
656.3 |
1.70898 |
|
643.8 |
1.70962 |
|
632.8 |
1.71022 |
|
589.3 |
1.71289 |
|
587.6 |
1.71300 |
|
546.1 |
1.71616 |
|
486.1 |
1.72222 |
|
480.0 |
1.72298 |
|
435.8 |
1.72944 |
|
404.7 |
1.73545 |
|
365.0 |
1.74574 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.8793047 |
|
-1.4987572 10 |
|
1.952514810 |
|
4.856985310 |
|
-2.068397310 |
|
1.641214610 |
|
Relative Partial Dispersions
|
|
0.3041 |
|
0.2535 |
|
0.2384 |
|
0.2363 |
|
0.5450 |
|
0.4838 |
|
|
|
-0.0028 |
|
-0.0090 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
3 |
|
1 |
|
4 |
|
ThermalProperties |
.gif)
|
630 |
.gif)
|
662 |
|
580 |
|
600 |
|
60 |
|
68 |
|
Mechanical
Properties |
|
620 |
|
1.30 |
|
11370 |
|
4420 |
|
0.288 |
|
Stress-Optical
Coefficient |
|
1.83 |
|
Coloration
Code |
|
37/29 |
|
|
|
Other
Properties |
|
3.82 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.80 |
0.64 |
2200 |
0.89 |
0.80 |
2000 |
0.980 |
0.960 |
1800 |
0.988 |
0.976 |
1600 |
0.995 |
0.991 |
1400 |
0.998 |
0.996 |
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 |
0.997 |
0.994 |
460 |
0.995 |
0.991 |
440 |
0.993 |
0.986 |
420 |
0.989 |
0.978 |
400 |
0.981 |
0.962 |
390 |
0.975 |
0.950 |
380 |
0.965 |
0.932 |
370 |
0.949 |
0.900 |
360 |
0.920 |
0.847 |
350 |
0.88 |
0.77 |
340 |
0.81 |
0.65 |
330 |
0.71 |
0.51 |
320 |
0.60 |
0.36 |
310 |
0.47 |
0.22 |
300 |
0.35 |
0.12 |
290 |
0.22 |
0.05 |
280 |
0.14 |
0.02 |
|
1.71300 
53.83
0.013245 
1.71616 
53.61
0.013359