This page provides supplementary chemical data on aluminium oxide.
| Structure and properties | |
|---|---|
| Dielectric constant, ε11=ε22 | 9.34 ε0 at 25 °C |
| Dielectric constant, ε33 | 11.54 ε0 at 25 °C |
| Bond strength | ? |
| Bond length | ? |
| Bond angle | ? |
| Magnetic susceptibility | ? |
| Table of Refractive index | ||
|---|---|---|
| Wavelength(μm) | no | ne |
| 0.193 | 1.92879 | 1.91743 |
| 0.213 | 1.88903 | 1.87839 |
| 0.222 | 1.8754 | 1.86504 |
| 0.226 | 1.87017 | 1.85991 |
| 0.244 | 1.85059 | 1.84075 |
| 0.248 | 1.84696 | 1.83719 |
| 0.257 | 1.83932 | 1.82972 |
| 0.266 | 1.83304 | 1.82358 |
| 0.280 | 1.82437 | 1.81509 |
| 0.308 | 1.81096 | 1.80198 |
| 0.325 | 1.80467 | 1.79582 |
| 0.337 | 1.80082 | 1.79206 |
| 0.351 | 1.79693 | 1.78825 |
| 0.355 | 1.79598 | 1.78732 |
| 0.442 | 1.78038 | 1.77206 |
| 0.458 | 1.77843 | 1.77015 |
| 0.488 | 1.7753 | 1.76711 |
| 0.515 | 1.77304 | 1.76486 |
| 0.532 | 1.7717 | 1.76355 |
| 0.590 | 1.76804 | 1.75996 |
| 0.633 | 1.7659 | 1.75787 |
| 0.670 | 1.76433 | 1.75632 |
| 0.694 | 1.76341 | 1.75542 |
| 0.755 | 1.76141 | 1.75346 |
| 0.780 | 1.76068 | 1.75274 |
| 0.800 | 1.76013 | 1.7522 |
| 0.820 | 1.75961 | 1.75168 |
| 0.980 | 1.75607 | 1.74819 |
| 1.064 | 1.75449 | 1.74663 |
| 1.320 | 1.75009 | 1.74227 |
| 1.550 | 1.74618 | 1.73838 |
| 2.010 | 1.73748 | 1.72973 |
| 2.24929 | 1.73232 | 1.72432 |
| 2.703 | 1.719 | 1.711 |
| 2.941 | 1.712 | 1.704 |
| 3.333 | 1.701 | 1.693 |
| 3.704 | 1.687 | 1.679 |
| 4.000 | 1.674 | 1.666 |
| 4.348 | 1.658 | 1.65 |
| 4.762 | 1.636 | 1.628 |
| 5.000 | 1.623 | 1.615 |
| 5.263 | 1.607 | 1.599 |
| Table of Coefficients of Sellmeier equation | ||
|---|---|---|
| Coefficient | for ordinary wave | for extraordinary wave |
| B1 | 1.43134930 | 1.5039759 |
| B2 | 6.5054713x10−1 | 5.5069141x10−1 |
| B3 | 5.3414021 | 6.5937379 |
| C1 | 5.2799261−3μm2 | 5.48041129−3μm2 |
| C2 | 1.42382647−2μm2 | 1.47994281−2μm2 |
| C3 | 3.250178342μm2 | 4.02895142μm2 |
| Phase behavior | |
|---|---|
| Solid properties | |
| Liquid properties | |
| Std enthalpy change of formation, ΔfH | -1620.57 kJ/mol |
| Standard molar entropy, S | 67.24 J/(mol K) |
| Heat capacity, cp | 192.5 J/(mol K) |
| Gas properties | |
| Std enthalpy change of formation, ΔfH | ? kJ/mol |
| Standard molar entropy, S | ? J/(mol K) |
| Heat capacity, cp | ? J/(mol K) |