Aluminium antimonide

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Aluminium antimonide
Identifiers
3D model (
JSmol
)
ChemSpider
ECHA InfoCard
 100.042.410 Edit this at Wikidata
EC Number
  • 246-667-3
UNII
  • InChI=1S/Al.Sb checkY
    Key: LVQULNGDVIKLPK-UHFFFAOYSA-N checkY
  • InChI=1/Al.Sb/rAlSb/c1-2
    Key: LVQULNGDVIKLPK-XFZGNPHIAJ
  • [SbH+]12[Al-][SbH+]3[Al-][SbH+]([AlH-]14)[AlH-]1[Sb+]5([AlH-]38)[Al-]26[SbH+]2[AlH-]([Sb+]4)[SbH+]1[Al-][SbH+]3[AlH-]2[Sb+][AlH-]([SbH+]6[AlH-]([SbH+])[SbH+]68)[SbH+]([Al-]6)[AlH-]35
Properties
AlSb
Molar mass 148.742 g/mol
Appearance black crystals
Density 4.26 g/cm3
Melting point 1,060 °C (1,940 °F; 1,330 K)
Boiling point 2,467 °C (4,473 °F; 2,740 K)
insoluble
Band gap 1.58 eV
3.3
Structure
Zinc blende
T2d-F-43m
Tetrahedral
Thermochemistry
65 J/mol K
Std enthalpy of
formation
(ΔfH⦵298)
 -50.4 kJ/mol
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chlorideFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
0
3
1
317 °C (603 °F; 590 K)
Safety data sheet (SDS) MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Aluminium antimonide (AlSb) is a

eV
at 300 K, whereas the direct band gap is 2.22 eV.

Its electron mobility is 200 cm2·V−1·s−1 and hole mobility 400 cm2·V−1·s−1 at 300 K. Its refractive index is 3.3 at a wavelength of 2 μm, and its dielectric constant is 10.9 at microwave frequencies.[1]

AlSb can be

AlAsSb
.

Aluminium antimonide is rather flammable because of the reducing tendency of the antimonide (Sb3−) ion. It burns to produce aluminium oxide and antimony trioxide.

See also

References

  1. doi:10.1088/0268-1242/6/4/013
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