Refractive
Indices |
|

|
|

|
706.5 |
1.50619 |

|
656.3 |
1.50760 |

|
643.8 |
1.50800 |

|
632.8 |
1.50837 |

|
589.3 |
1.51000 |

|
587.6 |
1.51007 |

|
546.1 |
1.51199 |

|
486.1 |
1.51565 |

|
480.0 |
1.51611 |

|
435.8 |
1.51998 |

|
404.7 |
1.52356 |

|
365.0 |
1.52962 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |

|
2.2507913 |

|
-9.2442846 10 |

|
1.1089870 10 |

|
5.1327608 10 |

|
2.6970842 10 |

|
-1.4993177 10 |
|
Relative Partial Dispersions
|

|
0.3068 |

|
0.2552 |

|
0.2384 |

|
0.2366 |

|
0.5379 |

|
0.4772 |
|

|

|
-0.0005 |

|
0.0001 |
|
Chemical
Properties |
|
Grade |
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|
3 |
.gif)
|
1 |

|
3 |

|
1 |
|
ThermalProperties |
.gif)
|
558 |
.gif)
|
633 |

|
497 |

|
542 |

|
78 |

|
86 |
|
Mechanical
Properties |

|
487 |

|
|

|
7519 |

|
3128 |

|
0.202 |
|
Stress-Optical
Coefficient |

|
|
|
Coloration
Code |

|
32/29 |
|
|
|
Other
Properties |

|
2.47 |
|
|
|
Internal
Transmittance |

|

|

|
2400 |
0.89 |
0.79 |
2200 |
0.914 |
0.835 |
2000 |
0.964 |
0.929 |
1800 |
0.985 |
0.971 |
1600 |
0.997 |
0.995 |
1400 |
0.998 |
0.997 |
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 |
0.998 |
0.997 |
600 |
0.998 |
0.997 |
550 |
0.998 |
0.997 |
500 |
0.998 |
0.996 |
480 |
0.998 |
0.996 |
460 |
0.997 |
0.995 |
440 |
0.997 |
0.995 |
420 |
0.997 |
0.995 |
400 |
0.997 |
0.995 |
390 |
0.997 |
0.995 |
380 |
0.997 |
0.994 |
370 |
0.996 |
0.993 |
360 |
0.995 |
0.991 |
350 |
0.991 |
0.983 |
340 |
0.983 |
0.967 |
330 |
0.963 |
0.927 |
320 |
0.914 |
0.836 |
310 |
0.80 |
0.64 |
300 |
0.56 |
0.31 |
290 |
0.24 |
0.06 |
280 |
0.03 |
|
|