Tags: Chemical Compound, Chemical Substance.

Arsenic triselenide (As2Se3) is an inorganic chemical compound a selenide of arsenic.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.

As2Se3structure.jpg

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