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Aluminium oxide (data page)

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This page provides supplementary chemical data on aluminium oxide.

Material Safety Data Sheet

Structure and properties

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

Thermodynamic properties

Phase behavior
Triple point ? K (? °C), ? Pa
Critical point ? K (? °C), ? Pa
Std enthalpy change
of fusion, ΔfusHo 		? kJ/mol
Std entropy change
of fusion, ΔfusSo 		? J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo 		? kJ/mol
Std entropy change
of vaporization, ΔvapSo 		? J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid 		-1675.7 kJ/mol
Standard molar entropy,
Sosolid 		50.92 J/(mol K)
Heat capacity, cp 89.7248 J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid 		-1620.57 kJ/mol
Standard molar entropy,
Soliquid 		67.24 J/(mol K)
Heat capacity, cp 192.5 J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas 		? kJ/mol
Standard molar entropy,
Sogas 		? J/(mol K)
Heat capacity, cp ? J/(mol K)

Spectral data

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments 		 

References

Except where noted otherwise, data relate to standard ambient temperature and pressure.

Disclaimer applies.

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