Refractive
Indices |
|
|
|
|
706.5 |
1.77136 |
|
656.3 |
1.77605 |
|
643.8 |
1.77739 |
|
632.8 |
1.77866 |
|
589.3 |
1.78444 |
|
587.6 |
1.78470 |
|
546.1 |
1.79180 |
|
486.1 |
1.80614 |
|
480.0 |
1.80800 |
|
435.8 |
1.82448 |
|
404.7 |
1.84091 |
|
365.0 |
|
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
3.0510040 |
|
-9.4149325 10 |
|
4.172977510 |
|
1.977990310 |
|
-4.842149810 |
|
1.573425110 |
|
Relative Partial Dispersions
|
|
0.2875 |
|
0.2388 |
|
0.2359 |
|
0.2319 |
|
0.6095 |
|
0.5388 |
|
|
|
0.0013 |
|
0.0082 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
3 |
|
1 |
|
3 |
|
ThermalProperties |
.gif)
|
416 |
.gif)
|
450 |
|
361 |
|
393 |
|
87 |
|
95 |
|
Mechanical
Properties |
|
354 |
|
|
|
5596 |
|
2245 |
|
0.247 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration Code |
|
42/36 |
|
|
|
Other Properties |
|
4.99 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.955 |
0.912 |
2200 |
0.970 |
0.940 |
2000 |
0.984 |
0.969 |
1800 |
0.991 |
0.983 |
1600 |
0.997 |
0.995 |
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 |
0.998 |
0.997 |
700 |
0.998 |
0.996 |
650 |
0.997 |
0.994 |
600 |
0.997 |
0.994 |
550 |
0.996 |
0.993 |
500 |
0.993 |
0.987 |
480 |
0.990 |
0.981 |
460 |
0.986 |
0.972 |
440 |
0.978 |
0.957 |
420 |
0.961 |
0.923 |
400 |
0.910 |
0.829 |
390 |
0.85 |
0.73 |
380 |
0.76 |
0.58 |
370 |
0.57 |
0.33 |
360 |
0.26 |
0.07 |
350 |
|
|
340 |
|
|
330 |
|
|
320 |
|
|
310 |
|
|
300 |
|
|
290 |
|
|
280 |
|
|
|
1.78470 
26.08
0.030092
1.79180 
25.87
0.030602