Refractive
Indices |
|
|
|
|
706.5 |
1.70649 |
|
656.3 |
1.71032 |
|
643.8 |
1.71142 |
|
632.8 |
1.71245 |
|
589.3 |
1.71715 |
|
587.6 |
1.71736 |
|
546.1 |
1.72311 |
|
486.1 |
1.73464 |
|
480.0 |
1.73612 |
|
435.8 |
1.74920 |
|
404.7 |
1.76204 |
|
365.0 |
1.78584 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.8502239 |
|
-1.2202085 10 |
|
2.951735810 |
|
2.469948410 |
|
-1.652753810 |
|
1.569688410 |
|
Relative Partial Dispersions
|
|
0.2894 |
|
0.2405 |
|
0.2364 |
|
0.2327 |
|
0.5986 |
|
0.5293 |
|
|
|
0.0009 |
|
0.0031 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
2 |
|
1 |
|
2 |
|
ThermalProperties |
.gif)
|
435 |
.gif)
|
475 |
|
418 |
|
440 |
|
84 |
|
90 |
|
Mechanical
Properties |
|
390 |
|
0.56 |
|
5460 |
|
2210 |
|
0.235 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration Code |
|
39/34 |
|
|
|
Other Properties |
|
4.46 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.930 |
0.865 |
2200 |
0.955 |
0.912 |
2000 |
0.978 |
0.956 |
1800 |
0.985 |
0.970 |
1600 |
0.990 |
0.980 |
1400 |
0.999 |
0.998 |
1200 |
0.999 |
0.998 |
1060 |
0.999 |
0.997 |
1000 |
0.999 |
0.997 |
950 |
0.999 |
0.997 |
900 |
0.999 |
0.997 |
850 |
0.999 |
0.998 |
800 |
0.999 |
0.998 |
700 |
0.999 |
0.999 |
650 |
0.999 |
0.997 |
600 |
0.999 |
0.997 |
550 |
0.999 |
0.997 |
500 |
0.999 |
0.997 |
480 |
0.996 |
0.993 |
460 |
0.994 |
0.988 |
440 |
0.992 |
0.984 |
420 |
0.985 |
0.970 |
400 |
0.969 |
0.939 |
390 |
0.95 |
0.90 |
380 |
0.92 |
0.84 |
370 |
0.86 |
0.74 |
360 |
0.72 |
0.52 |
350 |
0.42 |
0.18 |
340 |
0.07 |
0.01 |
330 |
|
|
320 |
|
|
310 |
|
|
300 |
|
|
290 |
|
|
280 |
|
|
|
1.71736 
29.50
0.024317 
1.72311 
29.27
0.024703