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Zinc antimonide

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Zinc antimonide[1]
IUPAC name Zinc antimonide
CAS number
SMILES [Zn].[Zn+2].[Zn+2].[Zn+2].[Sb].[Sb].[Sb]
Molecular formula ZnSb, Zn3Sb2, Zn4Sb3
Molar mass 434.06 g/mol
Appearance silver-white orthorhombic crystals
Density 6.33 g/cm3
Melting point

546 °C, 819 K, 1015 °F

Solubility in water reacts
Band gap 0.56 eV (ZnSb), 1.2eV (Zn4Sb3)
Crystal structure Orthorhombic, oP16
Space group Pbca, No. 61
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Zinc antimonide is a chemical compound. Its chemical formula is ZnSb. It has zinc and antimonide ions in it.


Zinc antimonide is a gray solid. Its properties are between an alloy and a salt. It reacts with water to make stibine. It is a reducing agent. It is a semiconductor.

Preparation and Uses

It is made by heating zinc and antimony. It is used in transistors and infrared detectors.

Related pages


  1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 4–95, ISBN 0-8493-0594-2