Related compounds Molar mass 386.72 g/mol Melting point 360 °C Appearance brown-black powder | Formula As2Se3 Density 4.75 g/cm³ Boiling point 861 °C | |
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Arsenic triselenide (As2Se3) is an inorganic chemical compound, a selenide of arsenic.
Contents
Amorphous arsenic triselenide is used as a chalcogenide glass for infrared optics, as it transmits light with wavelengths between 870 nm and 17.2 µm.
Arsenic triselenide is covalently bonded. Even so, the arsenic has a formal oxidation state of +3.
Solution processed thin film As2Se3
Thin film selenide glasses have emerged as an important material for integrated photonics due to its high refractive index, mid-IR transparency and high non-linear optical indices. High-quality As2Se3 glass films can be deposited from spin coating method from ethylenediamine solutions.
Safety
Arsenic triselenide should be kept away from strong bases in contact with aluminium or zinc and strong acids.
References
Arsenic triselenide Wikipedia(Text) CC BY-SA