12-00837. Arsenic Pentaselenide [Archived]

Nomenclature

CAS number: 1303-37-3
As2Se5; mol wt 544.64.
As 27.51%, Se 72.49%.

Description and references

Prepd by melting the correct proportions of arsenic and selenium in a sealed tube containing nitrogen: Szarvasy, Ber. 28, 2654 (1895); 30, 1244 (1897); by the action of an arsenic salt on a solution of hydrogen selenide: Moser, Atynsky, Monatsh. Chem. 45, 235 (1925).

Properties

Black, brittle solid with a metallic luster. Poisonous! Dec when heated in air. Sol in alkali hydroxides and sulfides; insol in water, dilute acids, concd hydrochloric acid, alcohol, ether, carbon disulfide; dec in nitric acid.

Status

This monograph has been retired and is no longer subject to revision or update.