Refractive
Indices |
|
|
|
|
706.5 |
1.51069 |
|
656.3 |
1.51218 |
|
643.8 |
1.51259 |
|
632.8 |
1.51298 |
|
589.3 |
1.51470 |
|
587.6 |
1.51478 |
|
546.1 |
1.51681 |
|
486.1 |
1.52067 |
|
480.0 |
1.52116 |
|
435.8 |
1.52526 |
|
404.7 |
1.52906 |
|
365.0 |
1.53557 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.2641803 |
|
-9.5661709 10 |
|
1.065646910 |
|
4.303269810 |
|
-4.054725610 |
|
2.530155910 |
|
Relative Partial Dispersions
|
|
03062 |
|
0.2557 |
|
0.2393 |
|
0.2372 |
|
0.5406 |
|
0.4785 |
|
|
|
-0.0019 |
|
-0.0018 |
|
Chemical
Properties |
|
Grade |
.gif)
|
3 |
.gif)
|
1 |
|
1 |
|
1 |
|
ThermalProperties |
.gif)
|
535 |
.gif)
|
613 |
|
476 |
|
523 |
|
93 |
|
100 |
|
Mechanical
Properties |
|
468 |
|
|
|
6794 |
|
2776 |
|
0.224 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration Code |
|
33/29 |
|
|
|
Other Properties |
|
2.54 |
|
Internal
Transmittance |
|
|
|
2400 |
0.87 |
0.75 |
2200 |
0.903 |
0.815 |
2000 |
0.954 |
0.910 |
1800 |
0.980 |
0.961 |
1600 |
0.997 |
0.994 |
1400 |
0.997 |
0.995 |
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 |
0.996 |
700 |
0.997 |
0.995 |
650 |
0.997 |
0.994 |
600 |
0.997 |
0.994 |
550 |
0.997 |
0.994 |
500 |
0.996 |
0.993 |
480 |
0.996 |
0.992 |
460 |
0.995 |
0.991 |
440 |
0.995 |
0.990 |
420 |
0.995 |
0.990 |
400 |
0.995 |
0.990 |
390 |
0.994 |
0.988 |
380 |
0.992 |
0.985 |
370 |
0.992 |
0.985 |
360 |
0.990 |
0.981 |
350 |
0.985 |
0.970 |
340 |
0.973 |
0.946 |
330 |
0.944 |
0.891 |
320 |
0.88 |
0.77 |
310 |
0.73 |
0.54 |
300 |
0.48 |
0.23 |
290 |
0.20 |
0.04 |
280 |
|
|
|
1.51478 
60.63
0.008490 
1.51681 
60.33
0.008566