Gallium antimonide

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Gallium antimonide
CAS number 12064-03-8 YesY
PubChem 4227894
ChemSpider 3436915 YesY
Jmol-3D images Image 1
Molecular formula GaSb
Molar mass 191.483 g/mol
Density 5.614 g/cm3
Melting point 712 °C (1,314 °F; 985 K)
Solubility in water insoluble
Band gap 0.726 eV (300 K)
Electron mobility 3000 cm2/(V*s) (300 K)
Thermal conductivity 0.32 W/(cm*K) (300 K)
Crystal structure Sphalerite, cF8
Space group F-43m, No. 216
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point Non-flammable
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Gallium antimonide (GaSb) is a semiconducting compound of gallium and antimony of the III-V family. It has a lattice constant of about 0.61 nm.


GaSb can be used for Infrared detectors, infrared LEDs and lasers and transistors, and thermophotovoltaic systems.

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