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TITANIUM DIOXIDE (Rutile),
TiO2
Rutile is the most common form of Titanium Dioxide. Rutile is hard,
chemically resistant, and has a high refractive index that is useful for
interference applications.
Maximum available size: 10 x 10 x 10 mm.
Main Properties
|
Chemical Formula |
TiO2 |
| Molecular Weight |
79.9 |
|
Crystal Class |
Tetragonal |
|
Density, g/cm3 at 300 K |
4.25 |
|
Transmission Range, µm |
0.43 - 6.2 |
Reflection Loss for two surfaces at 2 µm, %
for the ordinary ray
for the extraordinary ray |
30
34.8 |
| Zero Dispersion Wavelength, µm |
2.8 |
| Dielectric Constant for 104 - 107 Hz |
200-160 |
| Melting Temperature, K |
2090 |
Thermal Conductivity, W/(m K) at 273 K
parallel
perpendicular |
13.0
9.0 |
Thermal Expansion, 1/K at 313 K
parallel
perpendicular |
9.2 x 10-6
7.1 x 10-6 |
| Specific Heat, cal/(g K) at 298 K |
0.17 |
| Debye Temperature, K |
760 |
| Bangap, eV |
3.3 |
| Solubility in water |
None |
|
Knoop Hardness, kg/mm2 |
879 |
| Bulk Modulus, GPa |
15.02 |
Refractive Index of Rutile (TiO2)
| l, µm |
0.4358 |
0.4916 |
0.4960 |
0.5461 |
0.5770 |
0.5791 |
0.6907 |
0.7082 |
1.014 |
1.5296 |
2.0 |
2.5 |
3.0 |
3.5 |
4.0 |
4.5 |
5.0 |
5.5 |
| nO |
2.853 |
2.725 |
2.718 |
2.652 |
2.623 |
2.621 |
2.555 |
2.548 |
2.484 |
2.454 |
2.399 |
2.387 |
2.38 |
2.367 |
2.35 |
2.322 |
2.29 |
2.2 |
| nE |
3.216 |
3.051 |
3.042 |
2.958 |
2.921 |
2.919 |
2.836 |
2.826 |
2.747 |
2.71 |
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